In Abominable, Jeremy's uncle Timothy and his cousin Blake seem to exhibit signs of this. In Chapter 2, Timothy is seen threatening Finnthe phoenix primarily because he has the potential to be dangerous, without actually having any intention to be.
One of Aesop's Fables involves a war between birds and mammals. The bat fought on whichever side was winning. If the birds won, he would claim to be a bird (because he had wings). If the mammals won, he would claim to be a mammal (because he had teeth). Eventually both sides got sick of the bat's betrayal and exiled him. This is why bats only fly around at night, when neither mammals nor birds can see them.
Afterglow (2015): Pretty much everyone who isn't an Anomaly has some degree of fear or disdain for Anomalies, thanks to the fact that all high-profile Anomalies were criminals or terrifying.
Extremely pervasive in the Age of Fire Series. Most humans and elves hate Dragons, dwarves are divided among those who hate them and those who see them as potentially useful. Dragons tend to see most other sentient races simply as food. There's also, in the first book, an increase of racism towards dwarves and elves by humans.
The people of the Ceres slums of Ai no Kusabi are discriminated against for being born in an area cut off from society with no chance for a future. It is so bad that the genetically engineeredclass of Elites in their Crapsack World don't even consider them to be human but wild animals.
Akikan! has aluminum and steel cans (the cans are cute girls here) holding some deep prejudice against each other. The first time this comes to light is when Melon and Yell begin slinging insults at each other based solely on the material they're made out of. The fact that this type of competition is encouraged doesn't help.
The Algebraist by Iain M. Banks:. AIs lose a Robot War against their fleshy friends. The survivors in hiding are reviled as abominations with parallels of religious bigotry and racism. As the story progresses the AIs are implied to be most unlike the Killer Robot stereotype and the "war" begins to looks more like Kristallnacht.
The Dayao from Always Coming Home view all other people as non-human, fit only for conquest as per their religion. They are doing their best not to dwell upon cases when their commoner men (who are humans according to said religion) are ordered around by noble women (who aren't).
"Amina": The humans of Persia, whatever the various communities may think of each other, have a shared interest and purpose in destroying the whole of ghoulkind because they eat humans. The intensity of this project is such that any human who fails to do their part gets stoned to death. Even the consul, ostensibly an American, has adopted this mindset, as he tells Waldo: "You must not feel any foolish sentimentalism about any fancied resemblance of these vermin to human beings. Shoot, and shoot to kill... it is incumbent upon every man to assist in eradicating these creatures."
In the Amtrack Wars series, there is considerable prejudice on all sides between humans and Mutes. On the human side it is varied. The Federation considers the only good Mute to be a dead one while the renegades and Iron Masters are willing to trade with them but still look down on them.
And Then I Turned Into a Mermaid: There have been millennia of hatred between mermaids and sirens, who resemble mermaids with wings, with complicated causes that include land grabbing, trade sanctions, and religious differences. The mermaids accuse sirens of luring sailors to their deaths. Sirens say that's just propaganda. When the deep sea became too polluted and mermaids started living on land as humans, they could have included sirens in their agreement with the English government, but they didn't, leaving most sirens stranded in the most polluted areas of the ocean.
There's a lot of racism directed at Andalites in Animorphs by the Yeerks, who see them as arrogant meddlers of the galaxy. Most other species are openly hostile to the Yeerks, for understandable reasons.
As more Andalites show up it is eventually revealed that a lot of that disdain is not unwarranted; they have, to varying degrees, a tendency to look down on "primitive" races like humans and Hork-Bajir, being occasionally patronizing at best and actively disdainful and dismissive at worst, the latter variety eventually planning to destroy the Earth and wipe out humanity if it will mean taking the Yeerks out with them. It is noted that Andalite civilians tend to be more humble and unprejudiced than the military types seen most often through the series, and in fact the destroy-the-Earth plan was called off in part because the Animorphs made sure their negotiations with the Andalite fleet were also patched through to the civilian network, implying the majority of the population would not have been on board with that.
Several years after the end of the war, Earth begins experiencing a rise in home-grown terrorists targeting Andalite tourists and/or the free Hork-Bajir colony.
Played for Laughs with Tobias's opinions on other birds (he's in a Shapeshifter Mode Lock as a red-tailed hawk). In particular, he considers seagulls little more than glorified pigeons.
Tobias: <I cannot believe I'm flying with seagulls. I could get kicked out of the hawk fraternity for hanging out with lowlifes.>
In Laurell K. Hamilton's Anita Blake series, there is considerable prejudice against both vampires and weres, and in some cases between lineages of vampires and species of lyncathropes (for example, werewolves regard wererats as inferior, some weretigers aren't too fond of any other species or even those fellow weretigers who aren't a purebred color, etc). One character develops a near murderous prejudice against vampires when his son becomes engaged to one and being infected by lycanthropy will generally get you fired if you're a teacher or in the medical profession even though it's technically illegal to.
Arc of Fire: It's revealed that dark elves aren't evil as a race, unlike in other depictions. Rather, they're simply dark-skinned elves, whom light-skinned elves are prejudiced against, making it basically identical to real life racism.
The fairies in Artemis Fowl are prejudiced against humans. This is presented as partly justified in the sense that, to some extent, Humans Are the Real Monsters, but to some extent it's obviously a product of the fairies' recognisably human limitations of perspective. The main reason cited is how unecological human actions are, but a favorite complaint is also how disgusting it is that human toilets are indoors. The fairy races are also intolerant of each other, but with at least one being Always Chaotic Evil, it's not surprising.
As of The Atlantis Complex, we see Turnball Root commenting on how the fairies are wasting resources to the point of throwing away something that would have only taken a dab of silicon gel to fix. The fact that it's also a mastercomputer of a space probe makes this an example of bad security as well.
Dr Asimov would use prejudice against Earth-born humans and against robots as a recurring theme. He was an atheistic Jew and had been drafted during World War II, making him sensitive to many of the civil rights issues that rose during the war's aftermath. In early space exploration, interstellar colonists would view Earth-born humans as disease-ridden savages. Robots would be addressed as "boy", lack permission to travel in the high-class means of transportation, and are treated with general contempt. Robots, in turn, are expected to call humans "master", do any/every menial task without complaint, and be as unobtrusive as possible.
Pebble in the Sky: Dr Asimov delves into subtle elements of racism as he explores the concept of minorities vs majority using Earth vs the rest of the Galactic Empire.
At the individual level, different characters show different prejudices and most don't change their opinions during the events of the novel. Bel Arvardan is the exception, starting with the belief that he is enlightened and liberal, but brimming with what we now call systemic racism. Falling in love with an Earthwoman helps him realize and overcome his prejudices, beginning to treat Earthpeople as normal human beings.
On a cultural level, there's extreme scientific resistance to the idea that humanity might have originated on Earth. Given that this novel was written in the 1950s, when there was still substantial racism towards African-Americans and resistance to the idea that humanity originated in Africa, this can easily be read as an allusion to debates of the time.
"C-Chute": Humans against Kloros, one of the few alien species in Asimov's work. Once the two races went to war for no good reason, most humans became blindly nationalistic and think the Kloros are a horde of savages, and those humans who point out that they are just on the other side, and perfectly civilized themselves, frequently get accused of being traitors to their species.
The Caves of Steel has both prejudice against Earth-born humans (largely by the Spacers, human colonists with a much stronger military) and against robots (by pretty much everyone, including Lije Baley himself).
I, Robot has several parallels between robots and black slavery. In "Little Lost Robot", published at 1947, a scientist at US Robots, Dr. Bogert, calls repeatedly robots "Boy". In "Runaround", written at 1942, the robots stationed on Venus must call all humans "Master":
The monster’s head bent slowly and the eyes fixed themselves on Powell. Then, in a harsh, squawking voice — like that of a medieval phonograph, he grated, "Yes, Master!" Powell grinned humorlessly at Donovan. "Did you get that? Those were the days of the first talking robots when it looked as if the use of robots on Earth would be banned. The makers were fighting that and they built good, healthy slave complexes into the damned machines."
In Backstabbed in a Backwater Dungeon, all the non-human races view humans as "inferiors" due to the humans having shorter life-spans, lower level caps, and having a harder time leveling up. As such, with the exception of the dwarves who care only about total merit, not simple strength, all the non-human races have a glaring superiority complex that makes them think harming humans in every way imaginable for sport is A-ok. Light, the human protagonist, takes extreme displeasure at the act.
In The Bartimaeus Trilogy, we have a three way version. Magicians, despite relying on demons for their power distrust and fear them, and tend to view them as being Always Chaotic Evil. The demons themselves resent being enslaved, and take any opportunity to double cross their masters. Magicians view commoners as being stupid and incapable of governing themselves, and the commoners quite naturally resent this attitude (The magician regime's disregard for their lives and freedom doesn't help). Most commoners fear and hate spirits as well, seeing them as tools of the magicians and assuming them to be evil, while spirits don't tend to differentiate between magicians and ordinary humans.
Fantastic races is one of many features that makes China Miéville's Bas-Lag novels as fun as it is. Prejudice against non-humans is institutionalised, inter-species romance is seen as a perversion, and the Remade (people who've been freakishly transformed as a punishment) are pariahs who are used as expendable slaves.
Played with regarding the humans and dragons. The latter are integrated into civilized society and both races generally get along just fine. However, there are still humans who either dislike dragons or are even openly prejudiced towards them. Sometimes it's for understandable reasons (for example, the size of dragons makes them somewhat cumbersome in towns and prone to unintentionally causing accidents), sometimes it's just out of pure hatred. Also, although formally part of Argonathian society, dragons seem like second-class citizens, since none of them hold any important positions and for the most part, they are either soldiers (and even then, they cannot be promoted and hold no ranks) or physical workers or farmers.
Moreover, there are other nations than Argonath in Ryetelth, and their inhabitants tend to perceive dragons as mere animals and find it hard to believe (sometimes even in the face of obvious evidence) that they are actually sentient beings.
The dragons, on the other hand, hold a firm belief that they are a superior race and although they do not tend to rub it in humans' faces, they still like to mock the homo sapiens for their perceived inadequacies like lack of tails or preoccupation with sex (or "fertilizing the eggs", as dragons call it). This is partially a reason for their dismissive attitude towards their dragonboys (however, they sing to a different tune the moment their dragonboy is threatened).
The wild, winged dragons think poorly of their wingless Argonathi brethren, seeing them as weak, earth-bound worms and slaves to the humans.
The Golden Elves (those in Mirchaz, at least) basically equate themselves to gods and view all races on Ryetelth as inferior. One of them, in conversation in Relkin, openly declares that he's as superior to him as Relkin is superior to an animal.
The inhuman rulers of Padmasa have a contempt for humans, especially their "weaknesses" like bodily urges and needs, harshly repressing them in their domain beyond what's absolutely necessary. All humans are for them nothing except minions or slaves.
Dook apparently perceives dragons as little more than animals, since he sees nothing wrong in capturing them and selling as slaves to Ourdh, knowing they will most likely be killed and eaten as a tasty delicacy. Given the fact that dragons in this universe are fully sentient and intelligent beings, the idea of eating them basically equals to cannibalism.
The three races of Dicathen - the humans of Sapin, the elves of Elenoir, and the dwarves of Darv - had prejudices towards one another that their ruling families sought to stamp out by forming the Council. Sapin and Elenoir had a war a few years back that left both peoples with tensions against each other, and Alduin, the current king of the latter, despised humans because the war led to the death of his mother. It would not be until years later when Arthur's rescue of his daughter Tessia saw Alduin undergo a Heel Realization after being called out for his racism by his daughter's rescuer, which in turn led him to form the Council.
Years later, when Tessia becomes the Student Council President of Xyrus Academy (which only recently began admitting elves and dwarves), her speech to the new students at the entrance ceremony has her implore them to put aside the differences between their races. This does not work out as not only does the racism against elves and dwarves persist, but the Alacryan spy network backs a group of radical students to help them orchestrate an attack on the academy.
The Alacryans, during their invasion of Dicathen, have a rather complicated relationship with the three races of the continent. As they themselves are humans (albeit those with the blood of the Vritra), they see no reason to be racist to the humans of Sapin (to the point that after the war, several noble houses in Sapin become Les Collaborateurs to their new overlords). The dwarves of Darv also receive somewhat fair treatment as their kingdom was so heavily compromised by the Alacryan spy network it effectively became a puppet state to them during the war. However, as the biggest bastion of resistance against them, the elves of Elenoir receive appalling treatment from them. During the war, the Alacryan invasion of Elenoir sees them capture Enslaved Elves by the thousands whom they treat horrifically, if not putting them to the sword where they stood.
The asuras, the Physical Gods of the setting, look down on the mortal inhabitants of Dicathen and Alacrya as "lessers" as they perceive themselves to be the Superior Species to them due to their mastery of mana. It is only thanks to their uplifting of them, which only occurred in the leadup to the Divine Conflict and would not have occurred normally due to the asuras' desire to not involve themselves in their affairs, that the lessers are able to use mana, and and even after being uplifted they still pale in comparison to them.
While the Vritra Clan treat their mortal Alacryan subjects rather horribly, that is not to say the rest of the asuras in Epheotus view them any better. They have a rather discriminatory attitude towards the Alacryans whom due to being subjects of the Vritra they view as Always Chaotic Evil (which is not the case as the Alacryans prove to be as much victims of the Divine Conflict as the Dicathians are). Those with Vritra blood are especially scorned against as misbegotten mongrels, and part of the reason the Divine Conflict started was the Vritra's interbreeding with and experimentation on the inhabitants of Alacrya.
Case in point, in Volume 11 when Kezess sends his forces to occupy Dicathen, they treat the surrendered Alacryans extremely poorly and were looking for any excuse to kill them all where they stood. When Arthur brings back the remnants of Seris's rebellion to the Alacryan enclave in Elenoir, the asuras are even less pleased as far as they are concerned, Arthur just reunited an enemy general with her troops.
Disregarding the Alacryans, some asuras have an extremely low opinion of lessers as a whole, bordering on outright Humans Are Insects or Super Supremacist territory. For example, Anakasha, a dragon, says that a couple hundred mortal lives are worth that of three dragons, while Taci, a pantheon, views killing Arthur's mother and sister as not only a way to spite him, but also because he wants to show him just how insignificant he is compared to the pantheon race.
Even the most benign among the asuras still exhibit a somewhat prejudiced slant towards the lessers (to the point that they still use the term "lesser" to address them when other asuras use it as a Fantastic Slur). For example, Veruhn views Arthur as a curiosity, while Wren during his stint training Arthur looks down on him for being a lesser and calls him out repeatedly for his shortcomings (though he is a case of Jerkass Has a Point as Arthur is far from ready to face the Vritra at that point).
Done with a twist in Kit Whitfield's Benighted in that what we would regard as normal humans are a despised minority in a world of werewolves.
In The Berenstain Bears' New Neighbors, (which also provides the main page image), a panda family (who are implied to have immigrated from China) have arrived at the Bears neighborhood. Although Mama Bear and the kids are okay with them, Papa Bear isn't. He also goes so far as to keep his kids away from them, and claims that the "posts" that their neighbors are setting up are a spite fence. In actuality, it was bamboo stalks for their dinner. All warm up to them by the end of the book, and enjoy their bamboo.
In Vladimir Vasilyev's Big Kiev series, all "fantasy" creatures look down on humans, whom they consider too short-lived (which they are, comparatively). On the other hand, some of them recognize that this causes humans to be more creative than those who are stuck in the old ways. The protagonist proves them right. Additionally, it's revealed that there is a small group of humans called Longers, who can live for several centuries but are otherwise human. When humans in Big New York found out that there was a small community of Longers living among them, they slaughtered the "freaks", even though they have never displayed such outright hate for non-humans. This is explained by the protagonist's Love Interest (who is a Longer, as is he, even though he doesn't know it) as hitting it close to home that there are beings out there who will live for much longer than you'll be alive.
In Black Bullet, the Cursed Children are a race of girls born with the Gastrea virus in their blood and are able to manipulate the virus that grant them superhuman powers. This is the same virus that turned most of humanity into Eldritch Abomination. Some cursed children are used as "Initiators" for civil security companies and paired with "Promotors." However, cursed children are treated with severe discrimination in human society and are feared and hated as if they were Gastrea. Cursed children are often faced with violence, abuse, and even Police Brutality and genocide. Some cursed children are even sold into sex slavery or used as slaves and child soldiers (especially in the Middle East) and governments have passed draconian laws that strip cursed children their basic rights to the point of Jim Crow law level segregation.
In Black Crown, the northern tribes are regarded by the south as little more than dangerous barbarians.
The Black Witch Chronicles has this all over the place. Pretty much every single race has at some point discriminated against at least one of the others. The Gardnerian Mages and Alfsigr elves, in particular, are both fanatical about their racial purity. The plot concerns Gardneria planning to wipe out all races they consider "unclean" as part of a fanatical "holy" war. As a nice serving of irony, every species in the setting, including the Gardnerians and Alfsigr, is descended from wyvern-shifters, meaning that none of the species are "pure".
In Samantha Shannon's The Bone Season, there is considerable government fostered hatred towards Voyants, people with Psychic Powers. They are outlawed and if caught they are either executed or "disappeared" unless they choose to work for the government rounding up their own people.
Additionally, the voyants who are captured by the government are sometimes sent to a penal colony run by a magical race known as the Rephaim. Most Rephaim despise humans and are required by their ruler to wear gloves at all times to prevent touching them directly.
In The Books of Beginning, the young hero Michael Wibberly has gotten all of his knowledge about both dwarves and elves from a book titled The Dwarf Omnibus, which was written by a dwarf, and thus has come to believe that all elves are lazy, stupid and vain. In the second book of the series, The Fire Chronicle, he is forced to re-examine his beliefs when he actually meets some real elves and discovers that while they may certainly be vain, they can also be very courageous, dedicated, and good to have on your side on a fight.
The Boundary's Fall series exhibits this in spades - the magically Gifted look down on "the commons", the commons fear and resent the Gifted; the Elves view the Garu'nah as wild savages and Humans as just plain inferior, and the Garu'nah think the Elves are honorless and arrogant.
For starters, cats and robots HATE each other, and have been at war with each other for centuries.
Neither side in the conflict thinks that highly of humans.
Ironically, despite making him their mole, the Great Robot Federation doesn't think that highly of Home because he's an Artificial Intelligence with no body.
In A Certain Magical Index and its manga spinoff A Certain Scientific Railgun, several espers and the higher ups of Academy City look down on Level 0s, seeing them as worthless. Several Level 0s, particularly members of Skill-Out, hate espers, usually due to jealousy and/or being bullied. Several people from the magic side hate espers, because espers are of science.
It says a sad, sad lot about what the administration thinks of Level-Zeroes when the city's prison and graveyard is located where Level-Zeroes live.
Kate Constable's Chanters of Tremaris series see its character throw this around a lot: non-magicians largely hate the Chanters; whereas priestesses of Ice-Call see themselves as superior for protecting and cherishing their Magic Music; the mute Tree People hate the Voiced Ones for an ancient war that almost wiped out the former but also hate Halasaa, who possess their hereditary magic both for his powers and for being part Voiced One.
In David Gerrold's Chess With A Dragon, human beings are treated with open contempt by other sentient species, for being mammals. Most sentient races in the galaxy evolved from dinosaur- or bird-analogues, and consider mammals to be revolting vermin, if not bite-sized snacks.
In the world Flio came from, baseline humans treat demihumans as second-class citizens at best. Treating them as slaves is more typical.
In the world Flio arrives in, there is no apparent prejudice between humans and demihumans, but there is lot of mutual prejudice between the human races, which includes demihumans, and the demonic races, enflamed by centuries of unending military conflicts.
The Chronicles of Dorsa: Terintans are disdained and mocked by other people in the Empire often. On seeing her Terintan lover Joslyn get this, Tasia resolves that she'll do something in the future about it. Joslyn however is dubious that even she, the Empress, can undo this with her power.
City of Bones by Martha Wells: Humans tend to believe that the bio-engineered krismen are soulless, subhuman, and prone to violence, making it near-impossible for a kris to establish a legal identity in a human city. Khat, the Badass Bookworm kris protagonist, is deeply jaded by the opportunities this has cost him.
Monsters look down on humans in City of Devils, referring to them as "meatsticks".
Its sequel ups the ante, adding inter-monster racism, with vampires being "leeches", werewolves and wolfmen being "doggies", gill men being "fishies", and so on.
The third book in the series adds even more with sidhe being called elves, meat golems called skin-dollies, ghosts are spooks, goblins are hobs, zombies are corpses, invisible men are glass men, martians are squids, and phantoms (as in "of the opera") are goons.
Because the titular human society is so militaristic and xenophobic, this trope is everywhere in Codex Alera. The Marat are usually called barbarians, are claimed to have sex with animals, and eat people. Although the first point is arguable and the second is false (they form non-sexual bonds with animals), it's heavily implied although never directly shown that the third point is actually true. The Alerans are also prejudiced against the Canim and the Icemen, both of whom are far more complex than humans depict them, but both the Marat and the Canim are basically just as xenophobic as the humans. All the various cultures eventually learn to get along, but only in the face of greater threats. The only group that seems to be actually fairly agreeable are the Icemen, as it's revealed that the Aleran-Iceman conflict is based on a large misunderstanding and not really anyones fault.
Despite having demon and vampire friends, as well as a were-fox girlfriend, Colt Reganhates Were-rats.
In The Coming Race, the Vril-ya view themselves as the only civilized people because of their use of vril. The small number of savages who can't use vril are regarded with "more disdain than the citizens of New York regard the negroes."
In the Jasper Fforde novel The Constant Rabbit, anthropomorphic rabbits are hated and discriminated against, officially and unofficially, so much that, despite being sapient, human rights don't apply to them. Their alien culture, religion and behavior fuels paranoia by the human government, which claims that, unless controlled, rabbits will soon outbreed humans, making them strangers in their own country - an obvious parallel to anti-immigration rethoric.
Feyre starts out hating Fae, like most humans, and the plot starts because she murders one (unknowingly, but at the time Feyre admits it wouldn't have made a difference). She grows out of this.
In the fae realm the high fae also look down at lesser fae.
In Courtship Rite, although half of the Kaiel clan are creche-born children of uterine replicators, the creche-born are considered somewhat second-class citizens. By the rules of the clan, Hoemei should be the next Prime Predictor, but because he's creche-born, there's some question about whether it will be allowed.
Cradle Series: Lindon's status as an "Unsouled" means he has no standing among his own people. He is allowed to live and eat, but little more. He is not allowed to learn any sacred arts beyond basic breathing techniques, he will not be allowed to marry, and anyone could kill him at any time if he annoyed them. Suriel does not approve of treating cripples this way, nevermind the fact that Lindon is nowhere near as crippled as Sacred Valley believes; he has a small handicap, but the outside world wouldn't consider it worth noting.
Cthulhu Armageddon by C.T. Phipps: Called out in the text that Deep Ones, ghouls, and Serpent Men are all closer to humanity than they are to the Great Old Ones they worship. Nevertheless, all of them hate each other and consider their variations monstrous. New Arkham is particularly bad about it as they kill all mutants they encounter and consider themselves the only "pure" humans, which doesn't work well for John once they believe he's a Half-Human Hybrid.
In the Low FantasyCyrils Woodland Quest - about a squirrel trying to find a mate - red squirrels discriminate against greys. At least Cyril himself does. As this is a children's book, he learns An Aesop about it. At the end of his quest, he meets three squirrel sisters - one red like him, one blonde and one grey. The red squirrel doesn't want to be his mate at all, and the blonde is a bit of a shallow gossip. The grey Una however is kind and nice. After a bit of debating, Cyril abandons his prejudices and the two become Happily Married.
The Damsels of Distress stories are set in a world shared by many different species and there is plenty of inter-species tension to go around. Most people think that wendigoes and centaurs are uncivilized savages. Pteranthropes (people with wings) are seen as overly haughty. Robbits (diminutive people with rabbit ears) are looked down upon. Humans are seen as overly obtrusive by everyone else.
In Harry Turtledove's Darkness Series series, an allegory of World War II set in a fantasy world, the nonsense of prejudice is put front and center by making those with Aryan features (their oppressors call them "the blonds") the equivalent of Jews (the Polish analogues are the ones with more typically Jewish features). He also does this in War Between the Provinces, essentially the same thing for the Civil War with blond serfs as the equivalent of southern slaves.
The trailmen and catmen in the Darkover series are the frequent targets of bigotry by the humans.
In Robin Jarvis' prequel to his Deptford Mice books, The Oaken Throne, a war is being waged between the bats and the squirrels. Each species believes that the other is evil. Only when a squirrel named Ysabelle and a bat named Vespertilio get to know each other do they realise that everything they've heard is wrong.
"I have learned a great deal since we met. Griselda used to tell me your kind were brutal and savage. She had many tales of squirrel children taken and devoured by bats and would repeat them time and again with great relish." "My mother used to relate the exact tale of you!" he exclaimed. "Only, your folk would make sacrifices to the trees you worshipped and feed their roots with blood."
Dwarves mistrust elves in Katharine Kerr's Deverry series. Their main belief is that the elves are all thieves, and go as far as placing enchantments on their own metals that run with light if an elf (or even a human with elven blood) touches it. Otho the dwarven silversmith removes the enchantment on Rhodry's silver dagger so that he can pass unnoticed, as a favour to Jill.
Humans also enslave The Old Ones who were one of the original races of Annwn before the humans arrived.
Averted, mostly in Dirge for Prester John. John is terrified of Pentexore's inhabitants, but he warms to them over time. Other humans don't react so well when John leads them out into the world. The races of Pentexore themselves don't feel this towards each other. Unless you count the people on the other side of the diamond wall.
Especially interesting is Commander Samuel Vimes of the City Watch. A self-described speciesist, Vimes has nonetheless allowed the Watch to become one of the most species-blind employers in the city, and recognizes better than most the value of its non-human members, such as dwarfs, trolls, and even vampires, for whom he still harbors an innate and intense dislike. Furthermore, the self-described nature of his speciesism might be a case of of Unreliable Narrator (or at least, becomes so after Character Development), as Vimes is a total misanthrope, with his dislike manifesting in his policeman's tendency to treat everyone as a vicious bastard until proven otherwise - and in the case of vampires, it's repeatedly indicated to have more to do with his intense loathing of the aristocracy which vampires represent the logical conclusion of. Vimes himself says to a dwarf recruit, "I can't say I like dwarfs much, but I don't like humans much either", and more or less everyone agrees that if Vimes is anything, it's fair to everyone (even vampires, eventually, and grudgingly), and he'll be fair if it kills him.
The Discworld includes its own racial epithets equivalent to our N-word: "rocks" for trolls, "lawn ornaments" for dwarfs, etc. The trolls have "squashies" for humans.
After writing the header quote on the main page in an earlier book, Pratchett began to depict non-fantastic intra-human racism on the Discworld in Jingo, with Morporkian bigotry against Klatchians and Klatchian bigotry against Morporkians. The warlike, nationalistic motive behind the racism is very bald, with self-contradictory propaganda about Klatchians being both brutally violent and contemptibly cowardly. Fred Colon tries to pull a "can't trust them dark-skinned folk" to justify his hatred for Klatch, which is discredited when Nobby points out that Omnians are pretty brown and Fred has no problem with them.
Non-human species often show a lot of Fantastic Racism toward each other, as well, most prominently the conflict between dwarfs and trolls. Werewolves and vampires also have a long history of mutual disdain.
There're also racial pecking orders within species.
Trolls from sedimentary families are considered lower-ranking those from igneous families. Thud! shows us the two extremes of the geology-based class system: at the top is the Diamond King (although Mr Shine is too enlightened to hold such prejudices himself), and at the bottom is Brick.
Dwarves have complex cultural standards for what makes one a "real" dwarf. Carrot considers himself fully Dwarfish despite being biologically human and there are plenty of dwarfs who actually agree with him. On the other hand, Ankh-Morpork is now the single largest dwarf population center, but many "deep dwarfs" consider anyone who leaves the mines to live among humans to have Gone Native in the wrong direction. The fundamentalists of Thud! think even speaking to humans is a sin.
There is a conversation in the novel Men at Arms in which prejudiced nobles simultaneously treat dwarfs as inferior and yet fear their cleverness and cunning, with the hypocritical logic of antisemitism or xenophobia, with Vimes inwardly dissecting this, and occasionally making comments that just let said nobles dig themselves deeper. This book's Captain Quirke probably shares the title of "most deeply bigoted human" with Lord de Worde from The Truth.
In Snuff, it seems that everyone looks down on goblins: legally they're judged non-sentient. After the gruesome murder of a female goblin, Lady Sybil Vimes successfully lobbies for the laws to be changed.
Dwarves give us a rare version of fantastic transphobia. Dwarves are outwardly a One-Gender Race; while there are both males and females under the armor (in fact, 90% of dwarf courting is working out whether the object of your affection is of a gender that you're interested in sleeping with), everybody is expected to act masculine. At least until some female dwarves like Cheery Littlebottom come to the big city and start to like all this stuff about lipstick and dresses and being a girl. After a lot of resistance, she gets to change her name to Cherry/Cheri and is officially recognized as a woman. The current Dwarf King is in fact female. Of course, what dwarves consider "feminine" is still hyper-masculine by human standards; basically the chain mail and leather have slightly different cuts and their beards are groomed differently while they drink alcohol that isn't exclusively beer.
In The Fifth Elephant, Vimes' entourage discover that their assigned lodgings has a troll head mounted above the fireplace. Everyone expects Detritus to take this poorly... only for him to point out that he still has a human-skull bowl that used to be his gran's, that he doesn't intend to apologize for having it and, in return, doesn't expect anyone to apologize for their grandfather bringing home a troll's head. He is, however, appreciative when the troll head is removed, and expresses gratitude for living at a time when trolls and humans can co-exist peacefully.
In the Disgaeanovels, the demons care much more about race then in the game, and worst example is Laharl’s aunt Yasurl who justifies violently abusing her nephew because of his half human blood and tries to have him assassinated because she thinks his blood makes him unworthy of being Overlord.
In Divergent, the rest of the factions really look down on Abnegation - the selfless good Samaritans who govern the city. They're called 'stiffs' by pretty much everyone from other factions. Tris is also convinced of this in Allegiant - where she's told that she is "pure" and the rest are "damaged".
The wars between the various "monster" cultures of the web-novel Domina subvert this a bit. While angels hating vampires who hate kemos sounds like it's this trope (and Mr. Exposition describes it as such), The Rant mentions that it's more like a gang war.
In the Dora Wilk Series, most angels consider other races inferior, demons hate devils for bossing around, angels and hellians despise magicals and vice-versa (Inquisition, anybody?), vampires dislike werewolves for being barbarians, vampire lords consider everyone else snacks, werewolves believe magicals want to enslave them, magicals don't like vampires because they suck blood and werewolves because they're mostly criminals, she-devils have a terrible reputation throughout the rest of magical world... and let us not even begin on the subject of half-bloods. Frankly, half of the plot is driven by Fantastic Racism.
In Double Star, the narrator has to be hypnotically conditioned to get rid of his irrational hatred of Martians. It mostly has to do with their body odor.
In the Dragaera novels, the Dragaeran treatment of Easterners calling to mind human racism and ghettoization of minorities, and the Dragaeran prejudice to Dragaerans descended from multiple Houses calls to mind various "purity of race" prejudices on Earth.
The Charmed in Dragoncharm, who are magic-wielding dragons, bear a centuries-old fear and disdain for the Naturals, who cannot wield magic and simply started hatching out of Charmed eggs at some point. The Charmed are stronger on account of their magic, and have a culture of using their magic to make themselves look exotic (extra limbs, colourful scales, extra fronds, etc.), which the Naturals cannot do. Later stories in the Dragoncharm trilogy show that the Charmed sometimes victimise Naturals, but in Dragoncharm they live in caves and avoid the Naturals, who live in the open. The Naturals feel afraid of the Charmed, and the mutual tension is at critical level during the events of the book.
Weiss & Hickman's Dragonlance has tons of this, the most readily available example being Tanis Half-Elven, he is accepted by neither his human or especially his elven kin at large. It seemed like nothing short of saving the world would allow him to be accepted by the humans, even after that most elves, save his wife, still can't stand the thought of him.
In Defenders of Magic Trilogy, set in the same universe, Northern Ergothians hate fair-skinned people, as most Northern Ergothians are dark-skinned and associate fair skin with being foreign.
The short story "Hunting Destiny", told from the perspective of the white stag in Dragons of Autumn Twilight, portrays him as convinced of the innate superiority of cloven hooved animals, such as himself and the unicorn he serves, over solid-hooved horses, pegasi, and even centaurs. The centaurs, on the other hand, regard the merely hooved and the merely human with contempt, since obviously it's superior to be both.
Ven is deemed a demon as a result of being half-dragon by ignorant humans if his draconic lower half gets revealed.
The half-dragons in Dragonkeep conversely have been raised to view humans as naturally inferior and lesser beings. The human warriors there, and dragon Maristara, find them all disgusting monstrosities. Along with feeling they're a danger, it's enough for them to order their deaths.
In Dust City, there's tension between animalia (sapient wolves, hedgehogs, ravens, etc.) and hominids (humans and humanoid beings).
EarthCent Ambassador has the Natural League, a group of alien species that achieved FTL travel on their own time and dime and dislike species such as humans who were uplifted by the Benevolent A.I. Stryx, but still have to put up with them due to the Stryxs' financial muscle. In Date Night on Union Station a gaming tournament becomes an International Showdown by Proxy when a human contestant (deuteragonist Joe McAllister's adopted son Paul) squares off with a contestant from the Natural League on his way to finishing in the semifinals.
In The Edge Chronicles, there is occasional mention of mistreatment and suspicion being directed against the Slaughters, a race of crimson-skinned, red-haired, nocturnal humanoids. Except, as the first book reveals, despite their ominous name, appearance and habits, the Slaughters are in general very decent people. Their name comes because their racial hat is their knack for butchering livestock and preparing meat, leather and other animal by-products that they then sell to the other races at the various trading markets. They sleep all day because butchering and tanning are hot, hard work and it's easier to do so in the dark. The red skin and hair is just a case of Astonishingly Appropriate Appearance.
David Eddings' The Elenium/The Tamuli books feature Elene contempt for Styrics (verging on medieval attitudes towards the Jews). The Styrics in turn detest the Elenes (with good reason, considering past atrocities) and the Delphae. Just for fun, people in the subject kingdoms of the Tamuli empire refer to their rulers as "godless yellow dogs" (a vile slur; as Oscagne points out, "We have gods. Give me a few moments and I might even be able to remember some of their names"). The distinctly Nazi-esque Cyrgai consider everyone inferior. And, to extend this a bit further, trolls don't like being called ogres.
In the 1966 novel Empire Star by Samuel R. Delany, it is suggested (though not outright stated) that this happens to the enslaved race known as the Lll. There are references to common phrases that appear in contemporary American discussions of racism, like "some of my best friends are..." and "Would you let your daughter marry a...".
The Empirium Trilogy: There is equal animosity between humans and angels. Angels hate humans because they took over land that they lived on first. Humans hate angels because the angels keep hunting them down. Both species despise marques because of their half-breed nature and their powers over space and time. In Kirvaya, there's also a contingent of elementals who force the nonpowered population into slavery.
An important part of the ending of the original novella version of Enemy Mine, with humans and Drachs continuing to resent and look down on each other even after the war is over such that the lead character rescues his adopted Drach son from an insane asylum he had been put into due to his ties to humanity and goes back to the planet he was originally stranded on to create a colony for people who were willing to get past it.
The Expanse is rife with racism on all sides. Earth and Mars consider the people of the Belt to be expendable subhuman laborers, and the Belters, in turn, distrust and even hate the "Inners". Martians, meanwhile, harbor intense distrust towards Earth for their meddling in Mars's terraformation, and have raised an army for the purpose of eventually invading Earth to gain their independence; while Earthers consider Mars to be under their sphere of influence and are keen to quash any perceived insurrection.
In the Fairy Oak series, some villagers start mistrusting all Magicals of the Dark, as they have the same destructive and transformation powers as the members of the army of the Enemy. The fact that the enemies are kidnapped villagers and that the only physical difference between the transformed good Magicals and the evil ones was which side of the walls they were in only serves as an argument for the fanatic Morus Voltar, who insist they are spies and will join the Enemy's troops at anytime.
In The Familiar of Zero, a war between humans and elves in the distant past caused both sides to consider the other evil barbarians. In addition, elves hate and fear beings who wield Void Magic and their familiars, considering them to be servants of the Devil. Tiffania really has it rough as she is a Half-Human Hybridand has Void Magic. Saito defends her and helps the others see that she is just a girl like them. Several human and elf characters have Commonality Connection moments.
In Fattypuffs and Thinifers, the two rival underground nations are strictly separated by weight, and they hold each other in contempt. "Down here we don't understand your Surface countries, where you mix fat and thin people without making any difference between them. Under the earth the races are properly separated. There are Fattypuffs and there are Thinifers."
Ferals Series: Fly ferals were, for generations, spurned and looked down upon by other ferals. This is the driving force behind the Mother of Flies' evil: vengeance for the mistreatment her ancestors suffered.
Feral: The Story of a Half-Orc: Orcs are hated by humans, and the only interaction they've had is violent warfare. To add to this, no halflings seen in the story have been anything but servants, and it's implied that Beastmen (Bipedal intelligent fusions of mammals and men) are thought of this way by elves.
In The Fifth Season, the earthquake-controlling orogenes are feared and reviled, seen as subhuman and enslaved by The Empire—assuming they're not mobbed to death as children when the people around them realize what they are.
More mundanely, the upper-class Sanzites look down on other ethnicities for not having the physical traits (thick and curly ash-filtering hair, wide childbearing hips, etc) that supposedly make surviving apocalypses easier.
The First Dwarf King contains elves versus dwarves as its most obvious example. However, as the book goes on, it becomes apparent that it's more a case of elves vs everyone else.
Society in Flatland is based around how many sides and angles one has, with circles making up the highest class. Irregular shapes are at the very bottom. They're shunned by their own families and society from the moment they're born, not allowed to have any jobs or responsibilities, and watched over constantly by the police for fear that they might pervert society. This stems from the fact that Flatland is a two-dimensional world and some shapes have a hard enough time determining regularity on its own, so too many irregulars running around would mean chaos. Worst of all though, if an irregular is found to exceed certain margins when they come of age, they're euthanized.
The Mage Emperor once conquered much of the world and used non-magical people as slaves. When he was cast down, the mundanes turned against mages and magical creatures; many fled to the Audland Protectorate, which had a much more open policy regarding magic.
Mages often look down on those without magic. This is the titular flaw in all magic; since the only one to look over a mage's spellwork is the mage himself, simple mistakes are easily missed.
The disciples of the new Mage Emperor not only continue the prosecution of the magicless, but they really hate orcs for having almost no magic at all. Several of them treat Kadka as an insect who should be exterminated as soon as possible.
In C. J. Cherryh's Foreigner (1994) series, the conservative humans are against the alien atevi, and vise-versa. On the human side the conservative humans think that the atevi are entirely to blame for the disastrous War of the Landing. On the atevi side the conservative atevi: 1) think the War of the Landing was the fault of the humans, 2) are traditionalists who hate the technology the humans have brought (and the cultural changes which came with the new technology), and 3) resent that one atevi region and ethnicity, the Ragi, have become so powerful because of their alliance with the humans.
A Fox Tail has racism between foxes and wolves, particularly since the main couple are a fox and a wolf. There is a powerful lobbying group known as the "Association for Fox Rights" which develops a fox-supremicist splinter group who attempt to assassinate Vulpie for marrying a wolf (and making their species look bad by hacking everything).
In Fungus the Bogeyman, the Bogey people are prejudiced against humans (or "drycleaners" as they call us), even making golliwog-type dolls of us.
In Glen Cook's Garrett, P.I., Garrett admits to hating ratpeople, a prejudice shared by most of the folk of Tunfaire, the city in which most of the novels take place. However, his attitude changes after his close association with ratwoman Pular Singe. Originally hired as a tracker (ratfolk have a phenomenal sense of smell), Singe impresses Garrett with her intelligence and personality to the point where she is now a full partner in his professional endeavors. She also manages his budget.
Speciesism is a major plot point in one Garrett book and keeps recurring in later works. After a decades-long war ends and human veterans return to the city, they find that most of the jobs back home have been taken by nonhumans (humans have to serve; other races are exempt). This leads to the creation of The Call, a "human rights" organization dedicated to the eviction or elimination of dwarves, elves, half-elves, ratfolk, ghouls, gnolls, and exotics (apparently, non-humans have no qualms about inter-species romances—"exotics" are people whose ancestry is not readily apparent) from the kingdom.
In Generation Dead, teenagers all over America are coming back from the dead. Some are just like regular teenagers, only slower talking and with a lower body temperature. Others are very slow and can barely walk. The "zombies" are every minority that ever existed combined. How they are treated is almost like how black people were treated in the Deep South. The high and low functioning is almost like mental retardation. The series even arguably addresses discrimination against AIDS sufferers in the early 80's with the death of Adam Layman, who was considered an all-American pillar of the community. When he comes back as a zombie, he is treated with scorn and disgust similar to that of one of the most famous AIDS sufferers, Ryan White.
In Sergey Lukyanenko's Genome, the Specs and the Naturals have a deep-seated distrust of one another. The Specs consider themselves superior to the Naturals, while the latter see the Specs are freaks. The novel doesn't mention any actual violence towards either group, though. When the main character, a Spec, is hiring crewmembers for his ship, a man offers his services as a skilled navigator. He first asks if it is a problem he's gay, which causes the protagonist to be offended by the assumption, as this sort of discrimination is completely gone by that time. The navigator then adds that he is a Natural, which almost immediately causes the protagonist to want to reject him, but having just said that he's beyond petty prejudice, he can't go back on his word. This was the navigator's plan all along. He later tries to find any flaw to use as grounds for termination, but the Natural proves himself to be an excellent navigator.
The navigator himself has an irrational hate towards clones, which Imperial law recognizes as human beings. Many humans also have problems with aliens, especially the people of Ebon, who believe it is their divine mission to rid the galaxy of aliens to make way for the "true children of God".
In Line of Delirium, another of Lukyanenko's novels, clones and genetically-engineered humans are illegal in the Human Empire by order of Emperor Grey (who isn't actually a tyrant, just a regular guy with regular prejudices). So, naturally, the two protagonists are a clone and a genetically-engineered "super".
In The Goblin Emperor, the elves have white skin, fine white hair, and blue or green eyes. The goblins have black skin, coarse black hair, and suspiciously African-sounding skull shapes. Elvish and goblinish civilizations have about equal power, but they don't trust each other.
In Go, Mutants! there is a lot of prejudice against both aliens and mutants. This is encouraged by the government.
Quinn at his lowest points resorts to actual racism, usually against Edilio. In fact, nearly every villain refers to Edilio as "the Mexican". Lampshaded in the second book by Edilio himself:
Edilio: I'm not just your good-looking Mexican sidekick. Sam: You're not Mexican, you're Honduran. Edilio: Sometimes I forget.
In Plague, Lance goes full-out racist and blames blacks, gays, Mexicans and Jews for all his problems, as well as freaks.
The science fiction novel The Green and the Gray by Timothy Zahn focuses on two not actuallyHuman Alien species called the Gray and the Green, secretly living among humans in New York, who fought in a terrible war on their actually Earth in the distant past homeworld, fled in two starships to Earth and assumed the other had died in the genocidal conflict. They land in 1920's New York within days of each other, and the human immigration officer on Ellis Island that they both use assigns them to opposite sides of the city, hoping they'll never find out about each other. It has a lot of parallels to ethnic conflicts, migration and assimilation into American culture.
Zilpha Keatley Snyder's Green-Sky Trilogy deals extensively with the tensions between the fair-skinned, tree-dwelling Kindar and the darker-skinned, underground race of Erdlings. In this case, the difference between the Kindar and Erdlings was as much cultural as ethnic (The Kindar were vegetarians and the Erdlings hunted; the Kindar believed in repressing all negative emotions, while the Erdlings were very expressive. Among other things).
In the Griffin's Daughter trilogy, half-elves get it from both sides: The elves consider half-elves (or hikui, in the elves' language) second-class citizens, akin to African-Americans during the first half of the Twentieth Century. Humans consider half-elves advanced animals at best, abominations at worst. Not that humans and elves see each other much better: Elves see humans as rapacious barbarians. Humans (or at least the human kingdom in the story) see elves as creatures of evil, looking to steal the souls of men.
Guardian Cats and the Lost Books of Alexandria: Cicero, a cat, considers Polo, a ferret, undignified and not worthy of his friendship. The raccoons also make fun of Polo by calling him a rat.
The Pure Ones are a group of Barn Owls and related Tyto species who look down on other types of owls. And the Barn Owls even look down on other Tytos, like Sooties and Grass Owls.
Owls in general have a tendency to look down on seagulls and other birds because they don't produce pellets. "Wet pooper" is an owl insult sometimes, which requires some artistic license since real owls do also produce wet droppings.
White witches and black witches generally don't like each other.
Witches who are half-black, half-white or half-witch and half-fain aren't treated too well either.
The Heralds of Valdemar setting has the descendents of the Kaled'a'in, Magical Native Americans that derived into the plains-dwelling Shin'a'in and the forest-dwelling Tayledras. While they're noted for being more flexible than other cultures with regards to gender and sexuality they tend towards major xenophobia. Outsiders are not welcome on the Plains and barely tolerated in passing in Tayledras territory. In Sword of Ice, a short story featuring Savilin her youth, Savil helps a Tayledras in dire straits, after which he decides to take her home and faces strong resistance from his clan - he wants to make her a Wingsister, a trusted position that gives her many of the benefits of joining the clain without being expected to stay, but in all their history they've never granted that honor to anyone but Shin'a'in. Savil's not blood related at all and they have to give her a Secret Test of Character before agreeing. In addition, there's how the two cultures consider magic.
The Shin'a'in have been tasked with guarding ancient magic superweapons from anyone who might be able to use them and consequently have a Ban on Magic. Whenever a Shin'a'in is born with magic, they have a choice: have that gift deactivated, become a shaman, or leave the Plains (most being sent to the Tayledras). In The Oathbreakers, Tarma brings her out-clan mage oathsisterKethry home to visit. Many of the Shin'a'in are horrified that Tarma's paired off with a mage outsider and accuse Kethry of tricking her and coming for nefarious reasons. It takes divine intervention to make them accept her, but that does mean that when she has children they are considered also Tarma's and fully accepted despite clearly being of a different ethnicity. This is not the case for half-Outlander kids like young An'desha, who despite being raised on the Plains never had a place there.
The Tayledras were tasked with using magic to cleanse wastelands twisted and warped by the same magical apocalypse that their cousins are trying to prevent a repeat of. Magic is an Oddly Common Rarity for them and they tend to regard mages as better and more important than others - Starblade essentially abandoned his first son Wintermoon for being a Muggle Born of Mages, and Wintermoon complains to Skif that no woman of the clans will take a man without magic as a long-term partner. Non-magical Tayledras certainly still have important roles in the clan and there was a particular rift in this one, but they just aren't regarded with the same esteem.
Tayledras xenophobia depends on the clan and the Tayledras in question. The clan featured in the Last Herald-Mage Trilogy, having softened on outsiders since accepting Savil, allows outsider villages to be founded on the outskirts of their territory and tries to protect them from mages and magic, even offering to take a victim of an attack back to their Vale to try to help her. K'Sheyna in the Mage Winds trilogy allows a pair of Herald guests to become Wingsibs, accepts gryphons as allies (because they had access to ancient records listing gryphons as among their ancestral friends), and is unusually accepting towards people who were warped by magic and given inhuman features - meaning that they control their knee-jerk hostility towards such people and may allow them to cross Tayledras territory, but won't offer sanctuary.
Downplayed in the backstory of High School D×D. The Devil race has suffered a severe depopulation thanks to the Great Offscreen War, and as such, reincarnated humans are being used to fill out the ranks. Rias explains that at first, reincarnated devils were seen as second-class despite legally being able to hold any position a pure-blooded devil could. However, the Evil Piece system encouraged high-class devils to value and eventually respect the reincarnated devils under their command. By the start of the series, most devils will respect anyone who proves capable in the position they've been assigned, and openly being a dick to reincarnated devils for that reason alone is considered a faux pas even among the pure-blooded upper echelons.
The Hitchhiker's Guide to the Galaxy has this towards Arthur. Zaphod calls him Earthman and makes allusions to non-human primates frequently when talking to or about Arthur.
Kim Harrison's The Hollows series has a broad and increasingly obvious undercurrent of fantastic racism that can be traced back to a fantastic Holocaust between the Demons and the Elves that's still playing out in a kind of slow motion disaster for all sides.
In the Honor Harrington series, the use of genetically-modified troops during Old Earth's Final War has led to widespread prejudice against genetically-modified humans ("Genie" is sometimes cited as an in-universe slur against GM humans, though it rarely actually appears in dialogue).
It never occurs to the souls (including Wanderer, at first) that maybe they shouldn't be taking over the minds of every species they run across and essentially wiping them out. One species commits mass suicide to escape them; rather than rethink their system the souls cheerily continue infesting the ones who didn't escape in time, pausing only briefly to regret the waste of host bodies. They also tend to babble about humans being violent, while at the same time making an organized effort to "discard" all "wild" humans.
Even after Wanda comes to the conclusion that Humans Are Special and shouldn't be hosts, she doesn't extend the same consideration to the other species that the souls have conquered. For that matter neither do the humans, who are more than happy to ship disembodied souls off to other worlds to inhabit hosts there.
The Seeker, at at least in the film, makes a point to mention that Earth is the only planet that they have done this on where the inhabitants were not symbiotic with the Souls.
In I'm the Evil Lord of an Intergalactic Empire!, the people of the empire where protagonist Liam Banfield live almost universally look down on all AI, especially androids, because at some time in the past there was an AI rebellion. This causes Liam problems because his Parental Substitute is the Android maid Amagi, he treasures her, and does not tolerate any insults he hears about her. His friends have to be warned that he will not hesitate to use lethal force against any who do so, not even them.
Ignite the Stars: Due to the recent war, there's a lot of prejudice in the Commonwealth against foreign races, such as the Makolians and the Tawnies. For this reason, half-Tawny Brinn dyes her blue hair brown. (As blue hair is a distinctive Tawny trait.)
A major part of The Infected, where the titular Infected gain superpowers but also varying shades of mental illness. The Infected heroes run into all manner of discrimination, to the point the more visibly mutated characters can't go out in public without inciting a riot, and concentration camps are being seriously discussed in Congress, and the major plot is preventing a civil war as the Infected get sick of the treatment and finally organize and rise up in self-defense.
All over the place in the Inheritance Cycle, where all sentient races display varying levels of prejudice towards each other:
Everyone hates the Urgals, a race who have a rite of passage that demands that the young must find something, anything, and kill it. Everyone else sees them as utter barbarians, which to a certain extent is true, but their culture is actually a bit more complex than simply fighting and killing. Eragon has a discussion about this with one of their leaders.
Eragon: You've killed many humans haven't you? Nar Garzhvog: And you have killed many Urgralgra.
Nobody really likes the Elves either, seeing them as creepy, arrogant jerks. At the same time, everyone respects them, because they are physically and magically superior to the other races.
By extension, the Elves really are arrogant bastards, and more or less look down on everyone. Beside the Urgals, they see the Dwarves as superstitious fools and humans as rough barbarians.
Frankly, the only races who aren't overtly prejudiced toward each other are humans and Dwarves, who get on pretty well.
Into the Bloodred Woods: Werebeasts are looked down upon by the rest of the kingdom, to the point they're forced to live in cages, with not even the princess exempt. When he takes over, Albrecht has little difficulty convincing the citizens to wipe them out entirely.
In The Iron Teeth web serial, the main character is a goblin and gets treated badly by humans. Many humans seem to hate goblins and consider them subhuman.
In The Island of Doctor Moreau, the ape-derived beastfolk considers himself innately superior to the rest of Moreau's badly-Uplifted Animal creations, because he has five fingers on each hand, whereas the others have four or less on their paw- or hoof-derived hands. When the human protagonist becomes marooned on the island, the ape-man hails him as a fellow "Five-Man".
Some humans are prejudiced against demons, and think of them as "freaks" or "dumb animals". They think elves are a race of crazy people.
Some orcs are prejudiced against non-orcs for being weak in mind and body. The phrase for this is "soft skin".
Some elves are prejudiced against humans because of their mortality; "temps" as in "temporary".
Played with in Stephen Hunt's Jackelian series of Steampunk novels set in the Kingdom of Jackals. Whereas species isn't considered grounds for prejudice and humans live in harmony with crab-like craynarbians, spiney-bearded graspers, and Mechanical Lifeforms called "steammen", practically all of the above do display prejudice against anyone who's "registered", i.e. been exposed to feymist and not yet demonstrated any fey powers as a result. Once they do demonstrate such superhuman abilities, they're either conscripted into the Special Guard or locked up in a hellhole asylum, depending on whether or not their emerging powers leave them deformed. To some degree the prejudice is justified, as feymist-altered individuals have been known to go berserk; what's not justified is when assassins lay blame for their own crimes on a registered boy, knowing that few will question whether the innocent lad murdered his caregivers.
Japan Summons: The human-only country of Louria Kingdom, whose ambition of conquering the Rodenius Continent is fueled by the desire to exterminate demi-humans.
The Last Dragon by Silvana De Mari has what amounts to concentration camps for elves, who are so mistreated that they eventually nearly die out. The main character of the book is the last elf.
In The Legend of the Legendary Heroes, those born with Cursed Eyes are heavily subject to this. Going by some characters' personal experiences and one character's recounts of what he's seen, children born with such eyes are generally persecuted, sold to/abducted by the military, used as test subjects, and killed, often alongside their parents — if their parents weren't the ones doing the killing. Conversely, a fair number of Cursed Eye bearers are prejudiced towards humans right back.
Legends & Lattes: Averted in the city of Thune, which is a bit more cosmopolitan than many places, but the orc Viv has experienced this in the past and instinctively downplays her fangs to avoid scaring people. Tandri the succubus does get some of this, as everyone assumes she Really Gets Around. It actually drove her from university.
In Just a Little Different from the Little Critter books, there is a turtle/rabbit kid that most of the other children don't want to play with because he's "too different." This makes Little Critter angry, however, and he decides that the new kid isn't too different to play with him. Eventually, he manages to convince the other kids as well.
The Licanius Trilogy features Augurs, powerful mages who used to be Andarra's rulers but were overthrown and now executed on sight without trial. The Gifted, their ex-enforcers, are given second-class citizen status and managed by a dictatorial police service. Gifted who don't abide by the rules are stripped of their powers and turned into Shadows, who are discriminated against by everybody. There's even a slur, "Bleeders", exclusively used against the Gifted.
A lot of Fincaryan humans are prejudiced against other sapient races on the island. In the past, it got to the point of enslaving and even sacrificing them.
Dwarves generally don't like humans, as shown with Merlin's hostile reception among them.
Treelings have been hunted to extinction. Cwen in the last one.
The deer people have been hunted for food by humans, despite them being rational beings like themselves who can take human form.
Most humans also don't care that many of the trees can think as well, cutting them down like the rest.
The prejudice against Cyborgs, particularly among Earthens. They face heavy discrimination from the government and intense bigotry from most of the public, who see them as subhuman and believe that their enhancements give them unfair advantages.
On Luna, shells are seen as weak for not possessing the Mind Control powers of most Lunars, and are also mistrusted for being immune to those same powers. Most of the prejudice against them, however, is caused by the Lunar royal family's fearmongering, because they're unable to control them as easily as the rest of their subjects, as well as the fact that Queen Levana's parents were assassinated by a shell. And later, it turns out that this was also to justify shell children being taken from their parents by force to be used in experiments aimed at developing a deadly virus, which was ultimately unleashed against Earth as a form of biological warfare.
There's also the general hostility between Earthens and Lunars, as a result of the enmity between the Earthen Union and Luna. Earthens see Lunars as conniving, warmongering psychopaths, while Lunars see Earthens as primitive savages, both of which are a result of propaganda by their respective governments.
In the Malazan Book of the Fallen by Steven Erikson, this is a frequent theme. Seven Cities and the Malazan Empire; Letherii and Tiste Edur; Letherii and Awl; Bargast and Moranth; Tiste Andii, Tiste Edur and Tiste Liosan all hate each other; Imass and Jaghut, Jaghut and K'Chain Che'Malle, K'Chain Che'Malle and K'Chain Nah'Rhuk, the Tiste races and K'Chain Che'Malle. Basically, everyone hates pretty much everyone else.
In the Baldlands from The Mapmakers Trilogy, there is tension between people with the Mark of the Vine, with plant features like flowers for hair, and people with the Mark of Iron, with metal features like iron teeth. The Mark of the Vine is associated with nobility and praised, but the Mark of Iron is associated with barbarianism and its bearers usually decide "Then Let Me Be Evil" and become raiders.
This is the main theme of the Market of Monsters trilogy. The Earth is home to both mainstream humans and "unnaturals" (vampires, kelpies, kappas, ghouls, Unscaled Merfolk, and ones you've never heard of like zannies). Despite being sapient and mostly looking human, unnaturals are treated with more fear and less respect than animals. There's a list of species declared so dangerous that it's perfectly legal to kill them, and there's an illegal but thriving black market trade in their blood, bones, and body parts.
In Dhonielle Clayton's middle grade series about a magical school, The Marvellers, the Marvellers, with their star-based magic, look down on Conjurors, whose magic deals with death, ghosts, and the underworld. Marveller society considers Conjurors suspicious at best, inherently evil and possessed of a "bad light" at worst. Conjurors were until recently barred from most Marveller institutions, with protagonist Ella Durand being the first Conjuror to ever attend the prestigious Arcanum Training Institute, where she's alternately harassed and threatened, held to impossible standards, and used as a prop to show how wonderful and progressive the ATI is. However, it later becomes clear that Conjuring magic is specific to people descended from survivors of the transatlantic slave trade, so in addition to the fantastic racism, there's a big helping of regular racism.
The Marvellous Land of Snergs: Subverted. For ages, the people of Banrive believed that the Snergs were a ferocious, barbarian tribe who wanted to invade and pillage the realm. Then Joe and Sylvia came along and described the Snergs as an eccentric but peaceful and friend people, prompting King Keul to reconsider his old opinions.
The Mediochre Q Seth Series has examples against dragons, who (despite being sapient) have been hunted almost to extinction, and the undead.
In the A Memoir by Lady Trent spinoff Turning Darkness Into Light, fifty years of the world knowing that Draconeans exist hasn't exactly resulted in them being welcomed with open arms. The Calderite sect interprets Scripture's description of the downfall of their civilization to mean that God has turned his back on them and they have no right to live anywhere but the Sanctuary of Wings (basically a reservation so remote that nobody else lives there). The Hadamists take an even more extreme position, advocating genocide of the "demonic lizard-men". Notably, only two countries, Scirland and Yelang, classify an attack on one as equivalent to an attack on a human being.
In The Migax Cycle, a sapient species known as skeefers face constant discrimination in Migaxian society, from outright hostility to structural problems, and a large part of the plot revolves around the gradual escalation of Migax into a Nazi-like regime.
The Misfit of Demon King Academy: Emilia Ludowell is one of the worst examples of the discriminatory attitudes towards hybrids and humans. While most purebloods at least tolerate their existence despite scorning them, she sees anybody that isn't a pureblood demon as unworthy of even existing.
Miskatonic University - Elder Gods 101: Ralph gets a lot of flack from his fellow students for the fact that he is from Innsmouth and a Deep One hybrid. Notably, he assumed he would get an equal amount from the student body because he was gay but everyone just shrugs that off.
Shadowhunters are notorious for their sense of superiority. At best, they consider mundanes to be helpless and useless; at worst, they consider Downworlders to be dangerous criminals that need to be kept in check. The elitism of the Shadowhunters is often Lampshaded by outsiders, notably Clary and Simon, as well as Downworlders.
In City of Heavenly Fire Helen and Mark Blackthorn are considered tainted by their half-faerie status despite the former having fought for the Shadowhunters and the latter having actually leaked vital intelligence to the Shadowhunters. It's even sold by the Shadowhunters as saving the family from the future pain of being betrayed despite both clearly caring for their family.
The Shadowhunter Codex reveals that throughout history, there have been several attempts to wipe out Downworlders and that torturing them and robbing them was quite legal for some time. Things began to change with the Accords, but the racism lingers in Shadowhunter culture.
Clary: So progressive, we couldn't murder Downworlders in the street anymore. Jace: Big change, though—from "Downworlders are basically demons" to "Downworlders are basically humans."
Raphael Santiago discriminates against anyone who isn't a vampire.
Warlocks are the common descendants of demons and humans, so they are sometimes referred to as "half-breeds". But especially fairies and warlocks do not usually like each other. Warlocks despise the fairies for playing the mundanes nasty pranks, and so much for etiquette. Conversely, fairies despise the warlocks for selling their magic for money.
Vampires and werewolves do not like each other too much. The werewolf Maya says that the demons that created the two races hate each other, and hatred therefore extends to their creations. However, it does happen that werewolves and vampires become friends, so Simon becomes a friend of Maya and Luke.
An angel named Raziel was furious that Simon, who was a vampire, called him. Whenever mundanes or nephilim called him, he was much nicer to them. However, he does not seem to hate downworldlers so much that he actually wants to kill them, so he refuses Valentin's request to eradicate them.
In The Mouse Watch, protagonist Bernie Skampersky is a Tragic Bigot/Troubled Sympathetic Bigot mouse who's prejudiced against rats because one of them killed her beloved big brother. When she becomes a cadet for the titular Heroes "R" Us team, she's paired off with another new recruit, a rat named Jarvis Slinktail. Bernie struggles with her fear and hatred of rats, alternating between being suspecting Jarvis of being The Mole and starting to like him in spite of herself, until she finally has a Jerkass Realization (triggered by The Reveal that the traitor was actually a mouse) and accepts him as a friend and partner.
In The Nekropolis Archives, there is racism between some of the species of Darkfolk. Vampires strongly dislike zombies, viewing them as an inferior form of undead. The Fever House, Nekropolis's best vampire-run hospital, will take patients of any species except zombie. There is also much distrust between the Demonkin and the Arcane, as the Arcane have a history of using magic to bind demons to unwilling service. While all forms of slavery including demon-binding are forbidden in Nekropolis, the Demonkin have long memories and still bear a grudge.
In Neogicia, neomancers are either people who underwent Bio-Augmentation via genetical enhancement or the descendants of the people who underwent the procedure. The born neogicians tend to look down on those who underwent the procedure within their lifetime.
The Bio-Augmentation also cuts people away from the world's magic system that is provided by the gods. The Coalition includes many people that are The Fundamentalist concerning those gods and see both voluntarily cutting oneself away from th magic system and the technology that enables one to do that in the first place as major offenses towards said gods. This causes them to consider that neomancers are not quite human anymore and give neomancer prisonners much harsher treatment than they do to their still magic-capable prionners.
Every single race of humans in Nerve Zero despise one another, to say nothing of how they view those of mixed blood.
In A New Friend, the first in a series of illustrated chapter books about a mouse girl named Sophie Mouse, Sophie and her friends are startled when their new classmate turns out to be a snake, as they've heard some bad stories about snakes. They avoid their new classmate, but when Sophie gets home, she learns that her parents once had a snake for a friend. The snake in Sophie's class eventually transpires to the son of said friend, leading to a happy reunion.
Low-level discrimination against werewolves and other parahumans appears to be relatively common in Newshound, ranging from casual lycanphobia borne of ignorance to outright hatred and calls for death. The main character is a werewolf working for a major newspaper, and often has to deal with her editor's ignorant stereotyping.
Nightfall (Series): Prince Vladimir claims that vampires are a superior species, which puts them on top of the food chain. Myra points out that they are not even a different species – just dead humans.
In Nine Goblins, goblins are discriminated against by humans, elves, and pretty much everyone else.
The Occupation Saga: Shil'vati nobles have a tendency to look down on anybody who isn't another Shil'vati noble. There's also plenty of systemic racism: despite the Imperium's attempts at egalitarianism, non-Shil'vati are still pretty much second-class citizens and it's rare for them to reach upper officer ranks in the military.
In the October Daye series, Pureblood Faerie look down deeply on Changelings. This is a running theme throughout the series.
Zumordans, on the other hand, are almost universally mages. They view muggles as inferior people, viewing them with contempt.
"Penelope and the Willful Blade": There is a hierarchy to living objects, and those who were intentionally brought to life often look down on the ones who were brought to life by accident.
The Swedish children's book series Peter No-Tail (also known as Pelle Svanslös or Pelle No-Tail) has the titular cat experience more of a general Fantastic Bigotry (going beyond just "racism" and including ableism and classism) based on his lack of a tail, mostly from Elaka (mean) Måns, part of which is based on his tail having been bitten off by a rat. In addition, Måns also bullies Peter/Pelle based on him being a housecat, even though Måns himself also tries to woo over Pelle's Love Interest Maja Gräddnos ("Maya Cream-nose"), who herself is also a housecat. At one point Måns even calls for Pelle to be "deported".
Pool of Radiance: Ren hates orcs with a passion, and doesn't care for gnolls as well. Justified due to being a ranger in a D&D novel, as rangers then had a "favored enemy" which they preferred to fight over any other enemy.
In Jack McDevitt's Chindi (part of his Priscilla Hutchins series), it's mentioned that stealth studies of the winged aliens of the planet called Paradise reveal that the initial landing party was probably attacked because the natives consider a lack of wings to be a mark of evil.
In Protector, and several other stories in Larry Niven's Known Space universe, humans who live on and mine the asteroid belt go to great lengths to disparage 'Flatlanders', humans who live on Earth. Belters tan black from solar radiation, are generally unmuscular and extremely tall, and think Flatlanders look extremely strange.
In the Rachel Peng Novels, there's massive amounts of prejudice against Agents, government-created cyborgs like the title character. They technically have the ability to spy on anyone, anywhere, at any time, and access any computer system they can find, leading people to fear them and blame them for everything. Over time, the non-Agents Rachel work with slowly come to respect her staunch code of morals, and of course how useful her abilities are.
In the Realm of the Elderlings series, there's the persecution of Old Blood folk known as the Witted, who are born more highly attuned to life and bond with an animal companion. In the Six Duchies, they are vilified as little more than beasts themselves and tend to get lynched if discovered.
In The Record of Unusual Creatures by Yuan Tong, most of the supernatural species on Earth is innately hostile against each other. Even if two individual from two different species never met and grow up like normal humans they would still be hostile against each other the second they meet. The Demon hunters have an even stronger "hunting instinct" that can even be used to track other species. The Sin of the Divine Blood caused this hostility between species, and the corrupted Godslayer sword which resides in the Demon Hunter's headquarter "Coldpath" boosted the Demon Hunter's hostility to become the "hunting instinct".
In the first book, it's stated that holograms are discriminated against and treated as second-class citizens because they are seen by the living as a reminder of their own mortality. Holograms often hold equal rights marches. Given the power and computer run time requirements, only the mega-rich and mission-critical Space Corps personnel are resurrected as holograms. Rimmer had once thrown a stone at one of these marches as a child and one of his early thoughts after his death is that he's now a "dirty deadie".
Lister is horrified when he realizes that Kryten is essentially a willing slave in his eyes and notes that it's nothing more than a progression from slavery with blacks and housewives.
In the second book's chapter detailing the backstory of the GELFs, it's noted that the GELFs are technically human, having been engineered from human chromosomes. However, they are not allowed to vote and killing them is technically not considered murder. This leads to a small uprising, which is swiftly put down. In an extraordinary coincidence, this occurs around the same time as humanity's garbage problem, so the GELFs are all dumped on Earth and left to die.
In Red Handed by Gena Showalter, humans and aliens (or Outers, as they are called) don't get along and aliens are even hunted. This is explored more in the companion book, Blacklisted.
Red Moon Rising (Moore): Wulves are on the bottom rung of society due to their appearance, temperament, and The Change. Gunther and his cronies are especially rude to the wulves, and eventually Danny, taunting them with specist slurs and trying to goad them into fighting so that they get expelled. Vampyres see themselves as superior to humans as well, but not to the point of hate crimes.
Spoofed in Reel Life Films by Sam Merwin. Hollywood is producing science fiction because they're not allowed to use minorities as villains any more, and stock white renegade types don't offer enough variety. Then an alien shows up to complain...
Some witches, like Cassandra Black, are highly prejudiced against any non-witch fantastic being. Cassandra in particular regards ghosts as "the lowest life forms", and the seer the coven calls for aid refuses to speak to Olivia's ghost. In book 2, it's suggested that this is because being a witch is all about maintaining the natural order of things, and they feel ghosts violate that order..
Witches and werewolves traditionally hate one another. Molly's coven is a rare aversion, as they not only accept werewolves, Elsie starts dating one during book 1.
In Re:Zero, half-elves are sometimes treated differently, because Satella, the jealous witch, was a half-elf, according to legend.
In The Rising of the Shield Hero, Melromarc heavily discriminates against demihumans and beastmen, to the point that they are legally considered monsters and many are enslaved. In contrast, the neighbor country of Siltvelt is a demihuman country that discriminates against humans — save for the Shield Hero, who is considered a religious figure that, in the past, championed equality between all species.
In Rising × Rydeen most people tend to be fearful and cautious around strangers since a lot strangers have unstable powers that can cause a lot of damage. If that's not bad enough, a good number of them use their powers for nefarious purposes.
Mikan was shunned by most of her classmates, including her best friend, when she became a stranger with electric powers and couldn't stop accidentally electrocuting things.
When students from Takara's school find out he's a stranger they immediately start gossiping about him.
Ruri's dad left her and her mom after Ruri became a stranger.
Rogues of the Republic: There's quite a bit, but the most obvious examples are the magical creatures. Fairies, unicorns, and satyrs are essentially bundles of magic that have gained sentience. They were born from the magic of the ancients leaking after the ancients left the world, something that the ancients don't particularly appreciate. There are a number of ancient constructs with orders to destroy any magical creatures they find, deeming them subhuman parasites.
The hailene from Rune Breaker hate any hailene half-breeds or hailene who just happen to not have appropriate wing or hair color, dubbing them ang'hailene or 'not people'. The main character Taylin, an ang'hailene, in turn struggles with her racism against hailene and wariness at minotaurs, who she fought when she was a slave.
The other races in turn view all hailene as narcissistic warmongers.
There's also some question of if another character, Brin is racist against miare.
The Shallow Sea states that the God of Animals chose certain Humans to live on their island, but some couldn't make the leap of faith required, being horrified by the transformation happening to the others. Rejected by the disappointed God, they returned home with hearts filled with envy and resentment of the Faunus for being what they could never be.
The Judgement of Faunus states a god solved the war between Humans and Animals by transforming the armies into part-Human, part-Animal Faunus. Seeking refuge from the Grimm that were hunting them, the Faunus found themselves being ostracised by friends and relatives, who were horrified by the transformations they'd undergone. Left with no safe haven against the Grimm, the Faunus have been searching for a home ever since — in trying to fix one kind of war, their god inadvertantly started another (this time between Humans and Faunus).
Savage Divinity has most of the empire publicly accepting this view for Half Beast citizens. Most are looked down upon and denied work, or are just plain never adopted and die on the streets. Those who do live often find themselves as slaves to humans of the central province, this slave trade is accepted and Ancestral Beasts are even enslaved to be used as breeding stock to make more half beast slaves. In the rare event that a half beast finds themselves in a high military position they are openly mocked and discredited by the noble classes at every turn.
In the Schooled in Magic series, those who have magic tend to see themselves as naturally superior to those without and feel free to use their magic to demand (or just force) respect and even obedience. There is also a mutual distrust and dislike between humans and any non-human race (such as Gorgons).
In Seeker Bears, there's a lot of animosity between black bears, brown bears, and white (polar) bears. A lot of it comes down to this. For example, brown bears think that black bears are timid wimps because they spend all their time in the treetops. This trope's usage was emphasized when Kallik, a polar bear cub, saw a black bear for the first time and freaked out because "they were so different!"
Seirei Gensouki: Spirit Chronicles: Any beast-person who wanders into human territory is at risk of being turned into a slave. In turn, the Spirit Folk races view humans as dangerous, though Rio is able to earn their trust.
The Seven Realms Series has this everywhere and it's even justified at times! The Demon King, the man said to have nearly destroyed the world 1000 years ago, was in fact, a wizard. Upon his defeat, the Spirit Clans stopped making extremely powerful amulets for the wizards to use (this alone making the wizards think lowly of them), but it was forbidden for a wizard to ever marry the ruling queen. On top of that, many peoples throughout the seven realms think of the Spirit Clans as savages and wizards as heretics. The ill-will between these peoples really make things more complicated for the heroes later on in the story.
The society in Shades of Grey is divided along lines of what color of the spectrum is visible to individuals, with Purples being highest, then Blues, and so on with those who are completely colorblind, Greys being the lowest.
"But the real thing behind the way folks feel is simply race prejudice - and I don't say I'm blaming those that hold it. I hate those Innsmouth folks myself, and I wouldn't care to go to their town. I s'pose you know - though I can see you're a Westerner by your talk - what a lot our New England ships used to have to do with queer ports in Africa, Asia, the South Seas, and everywhere else, and what queer kinds of people they sometimes brought back with 'em. You've probably heard about the Salem man that came home with a Chinese wife, and maybe you know there's still a bunch of Fiji Islanders somewhere around Cape Cod."
In Adrian Tchaikovsky's Shadows of the Apt series there is considerable tension between the magically oriented Inapt races and the technologically oriented Apt ones. Much of this comes from the latter having been the former's slaves before overthrowing and eclipsing them. Also Mantids and Spiders hate each other, even though they are both Inapt for reasons both have forgotten. Likewise Moths and Butterflies. Meanwhile any Ant will distrust another Ant if they're from a different city-state, Wasps look down on everyone else and everyone looks down on half breeds.
Silverwing features this between the birds and the bats.
Friction exists between all of the races in Slayers: the dragons and the Shinzoku (Holy race) that serve the Gods, the Mazoku ("evil race") that serve the Demons/Monsters, and Elves all either scorn humans or manipulate them in some way or another (the first two are rather obvious, wile the Elves feel superior because they have a better innate talent with magic than many humans do). Meanwhile, most of the sub-human races (Beastmen, Berserkers, Fish-people) are either peaceful, subservient, or also scorned upon by the other three, as well as humans; the Fish-people in particular are often exploited for comedy relief. The ones that gets the worst of it, however, are chimeras.
Dr. Seuss' story "The Sneetches" is a thinly disguised allegory on racism (or classism). It describes a conflict between two subgroups of the titular Sneetches, a race of bird-like humanoids. One group has stars on their bellies, and thinks themselves superior because of it, while the other group doesn't. The Aesop comes after a huckster with the unlikely name of "Sylvester McMonkeyMcBean" convinces those without stars to pay him to have stars added to their bodies. Then it's no longer so special, since everyone has stars, but McBeen has a machine to remove them as well, for a modest consideration. The two groups proceed to repeatedly alter who has stars and who doesn't, along with which of the two conditions are more desirable. By the time McBean packs up his operation and leaves, they don't remember who had stars to begin with and who didn't, and thus abandon their prejudices as worthless.
The majority of demons are physically identical to humans, they have the same food, similar architecture, and similar social structure. The biggest difference is that demons tend to be superior in terms of stats. Despite this the two races have been trapped in a Forever War that has left both sides exhausted and hurting solely due to the animosity between the two races.
The start of this war was driven by racism. After the collapse of the ancient civilization, the demons who had used MA to evolve from normal humans were persecuted by humans. When this escalated to violence, the demons rallied together for self-defense.
Goblins are a monster race but they have a religion worshipping the same deity as humans, close-knit families, and a deeply spiritual view of life. However they aggressiveness when hunting has led to humans and demons viewing them as threats. Entire villages, including the children, are wiped out by "subjugation" teams.
Absolutely slaughtered in Tom Holt's book Someone Like Me. Humans and monsters in a post-apocalyptic Earth have been fighting and killing each other because each sees the other as evil. Told entirely from the human point of view, the novel ends when the protagonist finds that one of the monsters knows how to talk, and is just as human as he is. However, he kills it anyway, because he'd been killing them for so long he wouldn't be able to face thinking of them as people.
The Free Folk are seen as savages by people south of the Wall, who call them "wildlings". The current daily task at the Night's Watch is preventing the very-much-still-human Free Folk from crossing over the Wall, rather than stopping the invasion by the very-much-not-human and actually-malicious Others. Even some who recognize the organization's original goal tend to lump them both as the same threat. Jon Snow seems to be the first Lord Commander in generations to even consider welcoming the Free Folk to seek refuge in the Seven Kingdoms.
While not as extreme as their treatment of the Free Folk, the rest of the Seven Kingdoms look down on the Dornish to an extent. They have a reputation as a nation full of whores, because of their egalitarian views regarding gender and sex, and sneaky people, thanks to their tendency to use poison and other underhanded tactics in warfare. The Dornish are descended from the Rhoynar, who, aside from the Targaryens, were the latest migrants to arrive at Westeros, so their culture might have been considered alien to the First Men and the Andals. They emigrated from Essos to escape the Valyrians, from whom the Targaryens are descended, and resisted their attempts to conquer them militarily, so the Targaryens might have whipped up propaganda to discredit them. Aerys II's comment about his half-Dornish granddaughter "smell[ing] Dornish" suggests some racial discrimination, as well, which isn't helped by the fact that most Dornish have features comparable to Mediterraneans in real life (e.g., dark hair, olive skin), compared to the Central and Northern European features of other Westerosi (e.g., light hair, pale skin).
The Ironborn are the Token Evil Teammate of the Seven Kingdoms and look down on all mainland Westerosi, neither accepting the Old Gods nor the Faith of the Seven. They are, in turn, viewed with disdain by mainlanders, especially those from the Reach and Westerlands, who bear the brunt of their routine pillaging. Unlike the Dornish, it's almost unheard of for Ironborn Houses to intermarry with Houses from the mainland, though foreign "salt wives" are not out of question.
Played with in Son of the Black Sword, the fantasy world Lok, in a break from Medieval European Fantasy, has a vaguely eastern, Indian-derived society, complete with a brutal caste system that classifies the lowest as tools rather than people. It is more of a case of mundane racism in a fantasy setting. At one point during an attack, the defending forces are ordered to secure livestock and crops before the casteless.
In The Sookie Stackhouse Mysteries, there are several forms of racism. All the supernaturals think they're the best, and better than just plain humans, so there is segregation along supernatural lines:
Vampires think they're better than Weres, Shifters, Faeries, and Witches.
Weres think they're better than Shifters (Shifters don't turn into wolves. Weres only turn into wolves) and think Vampires are disgusting, to the point of slurring humans who associate closely with vampires. Shifters call themselves Weres when the wolf-type two-natured can't hear and think the wolven lycanthropes are thugs.
As you get to know the fairies, farther on in the series, they are shown to be prejudiced against anybody not-fairy. They're divided into two factions, one wants to kill all part-fairy hybrids.
Witches have infighting between Wiccans and nastier factions, who abuse vampire blood like normal people abuse drugs.
Humans are prejudiced against vampires, thinking God likes them better. And also because Vampires, y'know, eat them.
In The Sorceress's Orc, humans consider orcs to be little more than animals, even though orcs are actually at least as intelligent as humans, and have a highly developed culture.
Space Cadet (Heinlein): Oscar Jensen, who was born on Venus, treats the natives with respect, which is just as well. When Oscar accuses Matt and Tex of racism, they reply by pointing out they're not prejudiced against an officer who is black. Oscar dismisses their objections as silly — of course they're not racist against the officer; he is human, after all.
In Spock's World, many Vulcans don't respect or like humans, seeing them as little more than animals.
In David Sedaris' Squirrel Seeks Chipmunk, racism in the animal kingdom is touched upon several times, notably in "The Squirrel and the Chipmunk", in which a female chipmunk's family disapproves of her squirrel boyfriend; also in "The Cat and the Baboon," "The Toad, the Turtle, and the Duck," and "The Parrot and the Potbellied Pig," in which characters make inadvertent "speciesist" gaffes.
In Stardoc, Terrans have a not entirely-undeserved reputation for rabid xenophobia. Extraterrestrials can only even visit Terra on a strongly limited basis and certainly are not allowed to livelegally, resulting in underground communities of aliens and Half Human Hybrids, including professional shockball player Jory Rask (who hides her more obvious Jorenian features with sunglasses and gloves). Because (most) humans aren't too keen on anybody else, nobody is really keen on us either.
Played with in Starship's Mage. Mages in this far future setting are part of an aristocratic caste that has allowed humanity to colonize the stars, but they descend from a huge population of force-bred test subjects on Mars. Anti-mage sentiment is part of the reason that the main character's intended punishment in Book One is so severe, as it's intended to show that mages can police themselves. The privileges that mages are afforded have caused the "UnArcana worlds to bar mages from certain planets in retaliation. A more straightforward example is Mage-Commodore Cor in the second book, who considers all non-mages to be inherently inferior beings.
Aftermath: After Sinjir tells Jas he isn't interested when she agrees to have sex with him at a later date, she initially thinks it's because she's an alien, and reacts angrily. He quickly corrects her by saying he's just not interested inanywomen.
In Thrawn, the future Grand Admiral experiences a lot of this during his early career in the Imperial Navy. The same story also explores the origins of the Empire's anti-alien sentiments: since many alien species supported the Separatists during the Clone Wars, the humans of the Core Worlds developed a large amount of resentment towards non-humans which, when combined with the destruction caused by the war and a belief that humans shouldered the brunt of the war effort, evolved into outright speciesism with the rise of Palpatine's New Order.
Queen's Shadow: While discussing Corrupt Corporate Executive Nute Gunray's seemingly endless series of trials, Padmé mentions that she dislikes Neimoidians, but is also uncomfortable with this fact, since she knows she shouldn't hate an entire species based on the actions of a few members.
In Star Wars Legends, racism between humans and nonhumans, and between different species of nonhumans, sometimes comes up.
Wuher despises droids at the start of his story because in his mind they're the only lower thing than he is and thus the only thing he can legitimately hate. He has a change of heart when he realizes droids can be useful. Chalmun the Wookiee, who owns the cantina, doesn't much like them either, but only because they take up space which could go to paying customers.
Ponda Baba comes from a despised race among the Aqualish who are considered criminals and often leave their world as a result.
Borsk Fey'lya definitely fits this trope: while he claims to be advocating for all the species trampled under the Empire, it quickly becomes clear that his beef is with Humans generally, whom he considers inherently prone to oppression and power-mongering. It reaches the point where he even threatens to use all of his political power to ruin Bothan hero and Rogue Squadron pilot Asyr Sei'lar's career if she doesn't break things off with Human pilot Given, which he considers sets the wrong example for Bothans. He does though have a very fair point inlampshading how even the language used by good Humans is pretty anthropocentric-why should everyone else be called "nonhuman" or "alien" after all? It's rather glaring.
The Imperial institutionalized speciesism caused backlash. This becomes a major plot point when an alien resistance cell on Coruscant decides it hates the Human members of the Rogues. One of the members of the resistance was Asyr Sei'lar, and she decides to kill her future boyfriend Gavin (a Human) as a speciesist because he's too shy to dance with her (a nearby Gotal mistakes his emotions for speciesism). Misjudged a little there, Asyr.
Rhysati and Nawara (a Human-Twilek couple) also face this from Imperials when on Coruscant during the undercover mission to liberate it, with unsubtle threats over "flaunting" it.
The Krytos Virus was designed to affect multiple species, though not Humans. It wasn't simply a matter of the Empire not wanting to be infected themselves. Rather, they hoped that this would cause resentment toward Humans by these species as they weren't affected, and weaken the New Republic. Similiarly, one of Zsinj's plans involves using Manchurian Agents to encourage mistrust between the Human and nonhuman members of the New Republic.
The Empire had a secret program, Project Chubar, to "upgrade" members of other species into Human-level intelligence who could then be their agents. Due to her speciesism, the doctor who takes over has no problem with this (although her predecessor killed himself out of guilt after he grew close to his "children").
Kryneck and Isard discuss how the other species aspire to equality with Humans. Conversely, Humans such as them aspire to superiority over them. One of Kryneck's officers also reflects that he can understand the New Republic wanting liberty to some extent, but can't accept living with other species-it would just be too unnatural to him.
In Wraith Squadron, Kell plays a prank that convinces a cantina-full of people that Falynn was married to Piggy. Piggy asks an extremely pissed-off Falynn if she would have been so upset if it were, say, her and Face? Surprisingly for this trope, she then realizes she's being kind of an unwitting dick to Piggy, apologizes, and they agree to walk out of the bar holding hands.
Cyborgs don't seem to be well liked either, or make people pretty uncomfortable at least. It gets worse the more cybernetic they become. Tom Phonan especially suffers from this, since he's gotten most of his body replaced due to a series of injuries (which because of a bacta allergy, require cybernetics instead). He also feels this about himself-that every time another part of him is replaced by cybernetic prosthesis, he's further diminished and feels less himself. In the end, he expresses relief at dying because of it.
After the trauma of the Yuuzhan Vong war, Piggy has an open dislike and distrust of all Yuuzhan Vong.
Less mentioned is the plight of droids, ranging from mere automatons to thinking, feeling beings, all of them property with memories that can be wiped at a whim. It rarely comes up.
In Vision of the Future, this conversation between Han Solo and a clone of BaronFel. At the time, no details about the Clone Wars were known, and Zahn like most other authors assumed that the clones hadn't been on the Republic's side, so the antipathy was a bit different in origin.
Han Solo: So what's it like being a clone? Carib: About as you'd expect. It's the sort of secret that gets heavier with time and age. Han Solo: Yeah. I can imagine. Carib: Excuse me, Solo, but you can't possibly imagine it. Every time one of us leaves this valley it's with the knowledge that every outside contact puts our lives and those of our families at risk. The knowledge that all it will take will be one person suddenly looking at us with new eyes, and the whole carefully created soap bubble of the ever-so-close Devist family will collapse into the fire of hatred and rage and murder.
In the New Jedi Order series, the Yuuzhan Vong consider themselves the Master Race, and declared a war against everyone else to wipe out the galaxy's "impurity". They doubly hate technology-users.
For Tatooinian settlers, as noted in Star Wars: Kenobi, prejudice against the natives is a way of life. Jawas are Chew Toys that can't fight back if some humans want to shove them around, and the Tusken Raiders are seen as Always Chaotic Evil savages.
Alethi classes are based on eye color—lighteyes are the nobles, while darkeyes are the peasants. If a darkeye bonds with a Shardblade, their eyes turn light, implying that their entire culture is based on Asskicking Leads to Leadership from centuries ago.
There is also a variety of prejudices between the human nations. Despite most of the religions having a common basis (worshipping the Almighty and the ten Heralds), Alethi characters often refer to other nations as "Pagans" and judge them harshly for it. Cultural judgments, like the Might Makes Right attitude of the Alethi makes most nations see them as barbarian Blood Knights, and the Azish obsession with laws makes others view them as a nation of Obstructive Bureaucrats also are common. The Nations of Hats nature of the planet mostly means that these judgements are based in reality, although they also tend to be signification oversimplifications.
The Parshmen, are a Slave Race who are basically treated as animals. This is at least somewhat justified by their behavior though. They technically can speak, but only rarely do so and generally only manage a few words at a time, and they basically don't do anything on their own and follow orders without complaint. They're actually the original inhabitants of the planet, and humans managed to use their Voluntary Shapeshifting powers to force them into a placid and harmless form after finally winning a millennia long war.
In Stranger And Stranger, between the fae and the humans. This is a source of conflict between Ainslee and Gwen after Ainslee gets snatched.
Anti-mutant groups in Super Minion. Depending on the group, they either think that mutation is contagious (which is sort of true, but not in any meaningful sense), or think that mutants will one day completely replace humans (since normal humans can become mutants and all mutations breed true).
In Super Powereds, both Muggles and Supers look down at Powereds (who are, basically, Supers with Power Incontinence issues). Normal humans see them as dangerous (even if not evil), while Supers see them as freaks and lazy-asses, who don't train hard enough to be able to control their abilities. Naturally, it's not as simple as that. Also, the Powereds outnumber the Supers by a factor of four. Naturally, the Powereds, in turn, resent the Supers for their attitude. One of the greatest secret fears of every Super is the Powereds suddenly being able to control their abilities. They fear a global uprising and retribution for the crap the Powereds have had to put up with. This is why the five protagonists are hated by most of their HCP class in Year 2, after their secret is out, since they represent this fear. Some Supers also look down on normal humans, claiming that Supers are superior in every way (e.g. stronger, smarter, faster), even though they only differ by their power. Interestingly, there doesn't appear to be much of this trope between different kinds of Supers, even against those, who have only been classified as Supers for a few years (e.g. Gadgeteer Geniuss).
In Octavia Butler's novel Survivor and prequel short story A Necassary Being, the human colonizers and natives, the Kohns, are prejudiced against each other, with the humans seeing the Bigfoot-like Kohn as savage apemen and the Kohn considering the humans as easily exploitable weaklings. The humans also bring internal racism and religious oppression from Earth, while the Kohn are stratified into caste based on their fur color, from the small, weak yellow Artisans, to the strong but (considered) less intelligent greens, to the blues, whose leadership is absolute and unquestioned, with dominancy being determined by how much blue a person has in their coloring - ironic, as the Kohn can change to both express emotions and hide themselves. The one known human-Kohn hybrid is born an odd shade of green, but sadly is killed while still a baby so her future color is unknown.
"Fierce Dogs" (Dobermans) are subject to this. Other dogs view them as brutish and vicious, largely because the only Fierce Dogs they've encountered are Angry Guard Dogs. Even the dog-wolf Alpha hates them because he almost had his paw torn off by a "Longpaw Fang" (as wolves call them) as a pup. It's to the extent that the Wild Dog Pack is afraid of a bunch of tiny pups and Alpha wants to outright murder them before they can grow up and become dangerous.
Strays, known as Free Dogs, and wolves make fun of Leashed Dogs a lot. They're seen as soft wimps who rely on their owners for everything. Even normally gentle dogs like Sweet (a former racing Greyhound who was abandoned after hitting her peak) scoff at Leashed Dogs.
Lucky, and a few of the other dogs, dislike humans. In Lucky's case, it was because he was abused as a pup.
There are some implications about this and less "wolfish", companion dog-bred dogs. Sunshine, a Maltese, is tiny, spoiled, and not very cut out for much besides guarding and being an Omega, while the Pug named Whine is a uselessgonk who the other dogs look down upon with barely-hidden disgust (though this might have to do with his grimy personality).
The Fierce Dogs look down upon other dogs and especially mixed-breeds. It's to the point where even as a young pup, Grunt was already taught that he was superior than others.
Dogs have a mixed relationship with their "dog-cousins" (other canines). Wolves are seen as sneaky and savage, foxes are vile and can't be trusted, and coyotes are pretty much larger foxes. In turn, wolves look down upon dogs. Alpha received a lot of Half-Breed Discrimination from his wolf pack for being half-German Shepherd.
The Firbolg of Symphony of Ages are a primitive and largely-savage race. Although their reputation as brutish and cannibals is well-earned, they are also intelligent and have a strong internal society. Despite this, other races have largely regarded them as monsters to be driven back.
The most telling example of this racism was a practice of a human kingdom bordering their territory referred to as "Spring Cleaning". Every spring the ruler would mount a punitive expedition into Firbold land and raze any villages discovered to the ground, leaving few to no survivors. As pointed out by another character, the Firbolg had not launched even a retaliatory raid within the lifetime of the lord or his father.
A Tale of...: In A Tale of the Dark Fairy, it's shown that fairies, for all their sweet personalities, are remarkably prejudiced. This is a major reason why Nanny and Maleficent prefer to call themselves "witches" rather than "fairies". Maleficent herself was abandoned as an infant because of her lack of wings, her horns, and her "scary" look compared to other fairies. Even after being adopted, she received ostracism at school to the point where she ended up being homeschooled by Nanny (which came in handy because she was at too high a level for her schoolwork anyway).
In Tale of the Troika, Gabby the Talking Bedbug is a Bedbug supremacist, who sees humans as an inferior species.
One of the lynchpins of the Tasakeru universe. The eight sentient species are all vastly different from one another, and warred with each other constantly in centuries past. A truce was only established through the divine intervention of the three Gods that inspired sentientkind to live together. Unfortunately, once the Gods became ingrained into each culture, the tensions rose again. The only way that harmony could be maintained was by walling off the species from one another. Tempers still run high between them... the only real unifying factor is that everyone seems to hate the cross-bred wolfoxes. It's seen as socially acceptable to either ignore them or use slurs like "taints" to refer to them.
Explored in depth in the Temeraire series, where dragons are treated by most Europeans as nothing more than quite intelligent pack animals or weapons platforms.
People will casually discuss breeding dragons for various traits, and even whether or not it would be a good idea to slaughter all feral (riderless) dragons - all this despite the fact that dragons are demonstrably sapient, highly intelligent, and fully capable of speech. In this case, it's almost not even a metaphor for anything, because the books are set during the Napoleonic era, with all the racism and sexism of that time fully intact. After all, if people can decide that Asians, Africans, and women are inferiors, how much more a non-human intelligence?
On the ferals, there's the plan to send a dragon infected with a disease that kills dragons horribly over to France and let the disease wipe out not only France's fighting dragons, but those in the breeding grounds too, and thousands of others outside France too — don't worry, Laurence and Temeraire bring them the cure.
In Terra Ignota, set-sets are strongly discriminated against. They're essentially living computers, created by setting a child's developmental set (kind of like a Meyers-Briggs personality type, but with many, many more parameters) permanently in a format far above human norms. Defenders of set-sets point out that they are by far the happiest, most well-adjusted people you'll ever meet, while those against them claim that they can't be called alive since they can't grow.
Felix Faust: But it is not a human being, it's farther than dolphins, farther than chimps, farther than U-beasts, and it is not welcome in my Institute!
Thursday Next has discrimination against Neanderthals — they have been cloned and are therefore considered the property of the company who did it.
Time Machine Series: The Rings of Saturn has normal people, fearing for their jobs, prejudiced against cyborgs. Not that the 'borgs are that innocent themselves. In fact, pretty much every single cyborg encountered in the book just happens to be a dangerous criminal.
In Time Scout, persons with indeterminate genitalia or intermediate gender face discrimination. The response of some to "intersexuals" is well over the top. However, they may be vamping for the camera to help paint someone as a villain.
To Kill a Kingdom: Sirens and humans despise each other due to a centuries old war between them which led to the death of the Siren Goddess.
In Toby Alone and its sequel, this trope exists between Tree people and Grass people. Grass people are seen as evil by the Tree people, especially Joe Mitch and Leo Blue, who loathe them, dehumanize them, and use them as labour. Joe Mitch makes up the rumour that the Grass people kills Leo's father, El Blue, (while in reality, Joe Mitch kills El himself), which makes Leo hates them more than anyone else does, and even opts for a Final Solution to kill all of them by setting fire to the Prairie.
On the one hand, there is definitely a hierarchy of races, both spiritually and culturally. One's descent plays a large part in the story, and it is outright stated and accepted that certain races are objectively superior to others. Interestingly among men it is the tall and blonde-haired Rohirrim who are described as "middle men", while it is the dark-haired Dunedain as descendants of the Numenoreans who carry superior blood and culture. Meanwhile, Elves are accepted as being superior to everyone, and Orcs are at the very bottom. However, on the other hand, Elves and Dunedain aren't perfect. All races are represented by characters both good and evil.note Except Orcs, though even they at least get represented by a number of individuals with distinct personalities. Indeed generally the more "superior" the race the more disastrous the results when they go awry. While the role one's race plays in one's destiny is never questioned, the ultimate emphasis in the story is placed on individual choice. It is two hobbits, the most insignificant among the races of Middle Earth, who saved the world from Sauron's evil, while Elves, Men and Dwarves all overcome their prejudices to give them that chance.
Also note that J. R. R. Tolkien acknowledged the Fantastic Racism in The Lord of the Rings. He was said to have strongly regretted his depiction of the Orcs as seemingly Always Chaotic Evil and irredeemable, because it conflicted with his devout Catholicism. He often later defended the Orcs in later writings, claimed that they were simply misled and manipulated, and even said that "we were all orcs in the Great War", just as the "evil" humans were misled and manipulated.
In Tomorrow Town, a group of 1970s futurists have set up their community as a projection of the year 2000 will be like (in their estimations at least). They claim to have "evolved" beyond many of the divisions and problems faced by people in that time period, but at one point a member of the community makes a sneery comment to one of the outsider detectives in town to investigate a murder, calling him a "yesterday man" in the heat of the moment. The detective calmly but pointedly notes that she's been very careful not to use that term around him, the clear implication being that it's a slur towards people who aren't as similarly evolved as they are — yet more evidence that their vision of the future isn't quite as perfect and evolved as they like to think.
The Tough Guide to Fantasyland: Xenophobia is something most Peoples express. This is often experienced from the stranger Other Peoples toward humans, given their lack of extra limbs etc. It's mostly just acting patronizing though, rather than sacrificing them or something really bad, and Tourists will find their inferiority hard to argue with when their physical attributes do give them advantages. Ironically, those with the usual number of limbs express this racism by enslaving rather than simple condescencion.
In The Tower and the Fox, Calatians, human-animal hybrids created by sorcerers, aren't allowed to own land or vote, in London they're confined to an island in the Thames while many of the colonies have less official ghettos for them. Crimes committed by humans against Calatians are rarely prosecuted, up to and including removing their tails for the fur trade and outright murder. However, the British Empire of the alternate 18th century still treats them better than its' human slaves.
A major theme of Trinity Blood is that vampires and humans can and should stop fighting and live in harmony.
Two As One Princesses has it on two fronts. The country where the story starts and takes place is human supremacist, which explains why the fantasy staple races are missing from the narrative, and people are also discriminated on what Jobs they get from the gods at age 10. Particularly "disappointing" jobs like [Song Princess] can trigger riots and lynching.
Even though the crawlers/cockroaches, gnawers/rats, spinners/spiders, fliers/bats, etc. that coexist with humans in the Underland are not human, they are sentient and treated as full characters on the same level as humans. Prejudices held among human characters towards these species are even treated as equal to any intra-human bigotry.
The bats, humans, and mice are allies with each other, and hate the rats, who hate just about everyone but especially the humans and mice. The insects pretty much hate all the mammals. The spiders are willing to play both sides, and the cockroaches are considered stupid.
Vikus is one of the few Underland humans who doesn't have it.
Like Luxa, Henry mocks the cockroaches and even attempts to kill Ripred although this was more because of his alliance with the rats.
Un Lun Dun features largely irrational racism between living beings and ghosts, specifically, the ghosts supposedly steal bodies. Woe to the only known half-breed: everybody mistrusts him. All the more noticeable as the inhabitants of the eponymous city otherwise display extraordinary diversity and tolerance.
In Dani and Eytan Kollin's Unincorporated World series, Artificial Intelligences, known as "avatars", hide their intelligence from humans for fear of exactly this. When it becomes known one faction launches a war against humanity.
In Vampire Academy, Royal Moroi vampires are treated as inherently superior to non-royals. Getting all the privileges and able to treat their social inferiors as dirt. Moroi in general are treated as superior to Dhampires, who are supposed to devote their lives to them and are usually treated as servants. Alchemists are humans who hate them all as "evil creatures of the night", this includes Sydney Sage - she gets better though, after befriending Rose.
This is the central theme in the novel Vampire High, which is about a boy whose family moves to a small town where about half of the inhabitants are Friendly Neighborhood Vampires who call themselves jenti. The town is very self-segregated, with an unspoken rule that humans will not go in to 'jenti' stores and vice versa. After getting kicked out of the public school, he ends up attending the jenti school because vampires will die in water and the school needs a water polo team.
In Varjak Paw, Varjak's family treats other cats poorly because they aren't purebred Mesopotamian Blues like they are. When Varjak's friend Holly is captured, they refuse to help because she is a common street cat.
In Villainess Level 99, Valschein discriminates against people with black hair; Yumiella is discriminated against by many characters (including her own parents) because she was born with black hair, which is seen as a sign of misfortune and evil in Valschein. We later learn that dark-haired people, or even people whose hair borders on dark in general, experience the same prejudice she has for the same reason, and are treated with similar disdain and fear all the same. Witnessing such experiences from others leads to Yumiella choosing to take a more active role in politics to change the perceptions of black hair, with a chapter taking place a few years into the future showing that Yumiella did succeed in changing the perceptions of black hair in her territory into something more positive. It's also revealed that, while not unique to the kingdom, said discrimination isn't anywhere near as bad in many of the other countries.
In The Viper's Scheme, humans and demons are at war with each other and have been for centuries, though it's implied that their relationship used to be slightly less antagonistic. Humans in particular have come to think of demons as being like animals, as a way to fuel morale for the war and as a justification for keeping demons as slaves.
One of the most important plot devices of the Vorkosigan Saga. Word of God says that the author pondered "What is the meanest thing I can do to my hero" and then answered, "Make him a cripple on a planet that has a murderous Fantastic Racism toward cripples". On the other hand, the series is set at a time when that sort of thing is becoming more muted at least among the upper classes of Barrayar, Miles is protected by his father's status, and anyway his friends and faithful armsmen don't seem to mind.
The aforementioned prejudice is principally a result of Barrayar's peculiar history. Very shortly after the planet was settled, the only wormhole connecting the system to the rest of the galaxy collapsed, and Barrayar fell into a near-medieval state, and for centuries its populace were right on the edge of survival. Mutants, cripples, and anyone else who couldn't pull their own weight had to be killed, lest they drag the rest of the colonists down with them. The prejudice's fading is largely a result of the fact that a new wormhole was opened a couple of generations before the story and Barrayar's technology level has jumped about six centuries forward in two generations, which meant both that many disorders and handicaps could now be fixed and that there was a bit more of a safety net to catch those who couldn't perform to perfection.
The Wandering Inn: Drakes and gnolls don't think highly of humans, and vice versa. Half-Elves are even despised in certain areas, and have been called "half-breed", or "freak".
This plays a large part in Karin Lowachee's books. For most of Warchild, EarthHub is at war with the alien strivs. They are seen as bestial, cannibalistic, and Always Chaotic Evil. Of course, once their society is explored, they're revealed to be a lot more complex than humans first thought. But given what the author seems to think of humanity...
In The War Gods, other races of man shun the Hradani, who were turned into berserk shock troops for a Wizard War over a millennium before. Halflings are regarded as thieves and cowards, and the Purple Lords are half-elves who look down on anyone who's not a half-elf and a Purple Lord.
Warhammer 40,000: In Black Legion, other Astartes have their reservations about Khayon's friendship with eldar Nefertari, and Sekhandar mentions that while mutants, daemons and humans of many cultures are easily tolerated within the Eye, the xeno are reviled even more than in famously xenophobic Imperium.
Quite a bit in Warrior Cats. Although trans-Clan racism is mostly limited to stereotypes, the real racism is directed at half-Clan cats, kittypets, the Tribe of Rushing Water, and loners and rogues. Kittypets and offspring of kittypets are seen as soft and lazy for living with Twolegs. Even kittypets that join Clans are looked down upon by a lot of cats. As a result, Warriors born of a kittypet are looked down upon as well. Likewise, some rogues consider Clan cats to be cowards for relying on each other for support, and some Tribe cats dislike the Clans, as they consider contact with the Clans (and the outside world in general) to be a threat to the Tribe's autonomy.
In Louise Searl's The Way of Kings (2021) lions and hyenas, quite naturally, despise each other. At least until a lion and a hyena get to know each other ...
In the titular novella of The Dream Eaters and Other Stories by the same author, dragons and wyverns hate each other and have been at war for centuries. Each believes the other started it.
In Who Censored Roger Rabbit?, humans heavily discriminate against toons, the living cartoon characters they share their world with. Toons are treated in much the same manner African Americans were in pre-Civil Rights America, with elements such as segregated restaurants and schooling. One could even say that they were put in an "Animation Age Ghetto".
Both the Okeke and the Nuru have this toward each other in Who Fears Death. We mostly see Nuru oppression of the Okeke (according to their mutual holy book, Okeke are supposed to be slaves to the Nuru, and Okeke rebellions have a tendency to result in decades-long slaughters by the Nuru), but at least part of the oppression Onyesonwu feels from the citizens of Jwahir is that she is technically a Nuru because her father was one. Mwita's backstory involves him barely escaping an Okeke massacre of his Nuru relatives.
In Why Raeliana Ended Up at the Duke's Mansion, there's a race of northern humans with grey hair and red eyes who are seen as bloodthirsty and merciless by the general populace.
Discrimination against Animals (yes, the capitalization is mandatory) is an important plot point in Gregory Maguire's Wicked.
Elphaba, having green skin, suffers from this too, to the point of her mother considering killing her after her birth.
In the Wild Cards series, Jokers are basically reviled and treated as second-class citizens due to their wild card-induced mutations. On the other hand, Aces, who just gained superpowers, are treated reverently by modern media, but were the subject of cultural paranoia in the past (to the point where Joseph McCarthy blacklisted Aces, not Communists). In this case, despite the presence of visible mutants and superhumans, bog-standard bigotry still exists (two of the first big-name Aces were constant victims of it).
Sometimes one form of positive fantastic racism counteracts the other though. In-story the South African Apartheid regime treated black Aces as colored, while all jokers were treated as black.
Wings of Fire: RainWings are despised by other dragons due to being stereotyped as lazy and dumb, as well as not being involved in the war. The dragonets' caretakers made sure to let Glory know that she was The Un-Favourite.
In The Witcher saga, the main character is threatened as a "freak", despite the fact that he saves people from monsters. Elves must lives in reservations, most of the people think that "good Elf is a dead Elf", and if you have an Elf in your family tree, you cannot, for example, get a wedding in a city. Other races are threatened in a similar way by humans. And in the last book, there's another group of Elves, that escaped to another dimension, murdered and enslaved its humans. And the Unicorns hate all the Elves for that.
One of local dwarf stand-ins mentioned that elves weren't that friendly themselves until humans arrived — "Oh, now when it's their turn to be kicked around it's suddenly 'we, the Old Races', right".
The elves are very good at getting their own back. For example, racist elves consider humans to be no better than rabid wolves because humans have canines and eat meat. Also, the elves despise the dwarves for having an easier time integrating in human society, and while the Scoia'tael will allow dwarves to join, all Scoia'tael leaders are elves and it is widely acknowledged that there is no way the Scoia'tael will ever put elven interests second.
The Nomatsi people are heavily discriminated against, to the point where a manhunt begins when Iseult's ethnicity is discovered by a man on the street. The Nomatsi themselves live away from cities and booby-trap all paths of approach to feel safe — which makes sense when you consider that by the local law, they're not human.
Voidwitches are despised and feared by just about everyone, and while Bad Powers, Bad People is true for most of them, one must ask whether that's why they're hated or if that's what the hatred has caused.
Worlds of Shadow: Telepaths in the Galactic Empire are all highly prejudiced against, as people are very paranoid about them spying on their thoughts, and called "mutants". The main character points out this isn't true, since they all descend from one woman so it's a hereditary trait which breeds true, rather than just a mutation, but he simply gets accused of "standing up for mutants".
In Zomboy, when word gets out that Imre Lazar is a zombie, the town is in an uproar, with multiple townsfolk protesting his presence at Westwood Elementary School.
In Zoo City by Lauren Beukes, there is considerable prejudice against "zoos". It doesn't help that in order to have gotten an Animal you have to have commited a violent act.
are clearly prejudiced against their fellow interdimensional delegate, the Star Vampire — contrasting "something like you" with "people like us". Notably, while the Three appear humanoid while the Vampire is "something tall, smoky and carnivorous with too many eyes", it's suggested that the Three are themselves wearing A Form You Are Comfortable With, so this is eldritch-on-eldritch prejudice.