A race, species, or other group feels morally free to capture, torture, maim, psychologically brutalize, destroy, commit genocide against, and generally toy with the lives of "lesser" species while still feeling morally superior by virtue of the fact that they would never do such horrible things to their own kind
. Particularly, they would never kill
anyone of their own kind, and look down on other races, who prove their barbarity through killing each other.
They don't necessarily think they're morally superior because
they don't kill each other. They just think they're better
, and the fact that they don't kill each other is indirect proof of that. If they do start killing each other, don't expect them to suddenly realize they're no better (except perhaps for the Defector from Decadence
). They've probably got tons more reasons why they're better, all of them as irrational as that one. They might, for example, call those of their own group who are being killed and/or those who are doing the killing "primitive", "racially inferior", "malformed", "cursed", or even "impostors."
This sometimes appears as an aesop is Humans Kill Wantonly
/Humans Are the Real Monsters
and the audience is supposed to assume that the group really is morally superior to humans, though in a "they're bad
, but not as bad as humans
This is something of a Truth in Television
as well, since many of the so-called "barbaric" cultures were only so to the outsiders. Also compare the opening paragraph with humanity's prohibitions on human-abuse vs animal-abuse - when, in fact, humans do
regularly commit murder of their own kind, and for a variety of reasons.
Usually part of Cultural Posturing
; also a subtrope of Moral Myopia
. See also Thou Shalt Not Kill
, What Measure Is a Non-Human?
, Even Evil Has Standards
. Contrast In Your Nature to Destroy Yourselves
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- This becomes a problem in the Mermaid Melody Pichi Pichi Pitch anime with Sara, a mermaid villain that appears late in the first season. When the princesses try to use their Magic Music on her, it has absolutely no effect, since it's apparently hard-wired into their powers that they can't hurt other mermaids. This, however, doesn't prevent Sara from sending them into fits of agony with her own Villain Song once it's revealed that she too is a princess. The rule doesn't seem to exist in the manga, and the only reason they can't hurt her is because she's just that strong.
- Appleseed the movie: "Bioroids don't kill other bioroids!" This time they are morally superior to humans, because that's what they were designed to be from the beginning. As a downside they can't feel positive emotions as strongly as humans, either.
- At one point in After War Gundam X, Tiffa has a psychic chat with some Newtype dolphins, and explains human cruelty to them, since "Dolphins never attack one another". This is utter bollocks, since dolphins are actually well-known in scientific circles for their habit of killing one another for absolutely no reason other than "For the Lulz." Then again, it might be because the anime was made way back in 1996.
- In the manga of Chrono Crusade, it is mentioned that a Demon killing another Demon is an unforgivable crime which brands the killer as a Sinner. The law-abiding Demons, the Pursuers, are then obliged to hunt down and kill all Sinners. So it's more 'Ape Shall Never Kill Ape Unless The Ape To Be Killed Is An Outlaw'.
- From the New World: A thorough Deconstruction of this concept. Humans do not kill humans - even the idea is repugnant and incomprehensible. Not only are they socially conditioned to have a very strong aversion to killing or violence, they were also biologically modified with a death feedback response, a "self-destruct mechanism" that kills them with their own PK power should they ever kill another member of their species. The non-human bakenezumi have no such aversion to killing other bakenezumi and even fight wars for territory and slaves (under human supervision, as a controlled outlet for their aggression). This seems to play into the human perception of the bakenezumi as sub-human and potentially dangerous, though it certainly doesn't stop humans from using the bakenezumi in order to kill those humans who show signs of throwing off the social conditioning or who otherwise pose a threat to their social order. Finally, it's revealed in the very last episode that the bakenezumi were originally humans who lacked PK. Without the ability to give them a death feedback response, the same scientists who created the death feedback response instead mutated them into creatures that would no longer be recognized as "human," thus allowing humans to control them through the threat of violence even while creating their ideal pacifist society.
- Defied in a filler scene from Dragon Ball Z. Some low-level mooks are monitoring SSJ Goku and Freeza's fight from another planet, and one of them expresses hope that Freeza might lose. He's immediately shot by another mook of the same species, who declares that there are no more individual races - just those who obey Freeza and those who disobey.
- In Tellos, Hawke at one point manages to get out of trouble by invoking this trope when caught cheating at a betting game. Since it's forbidden for two members of the
elven Ulfen race to raise arms against each other, he pretends to want a fight and then happens to remember that this is forbidden.
- In the comic Marville it is stated by God that only humans kill their own species. Oh and the author wasn't making a joke, he fully believes this.
- Planet of the Apes: The Trope Namer, specifically Battle for the Planet of the Apes. The phrase "Ape shall not kill ape" appears three movies earlier in Beneath the Planet of the Apes as an excuse to not shoot down protesting pacifist apes. The first film mentions a sacred scroll that hints the concept as well: "Beware the beast Man, for he is the Devil's pawn. Alone among God's primates, he kills for sport or lust or greed". However, as the Real Life section shows, actual primates do kill each other.
- The reboot (specifically Dawn) has kept this trope however, a No True Scotsman invocation helps Caesar get around it. Given that said ape had already attempted to assassinate Caesar and killed other apes, the others don't object too much.
- And of course the glaring No True Scotsman is that humans are an ape species just as much as chimps, bonobos, orangutans, and gorillas are. So...
- Alien franchise:
- Aliens: Ripley appeals to this trope when she says, "You know, Burke, I don't know which species is worse. You don't see them fucking each other over for a goddamn percentage."
- Alien: Resurrection:
- Several Aliens tear apart another to acidically burn though the ship. However, it apparently did this voluntarily, sacrificing itself to allow the others to escape. Even if it wasn't, it wasn't petty "murder" but a necessary step to allow their race to survive. That, and these particular aliens had been splices with human DNA, so they weren't like normal Xenomorphs...
- A similar thing in done in Alienvs Predator, where aliens tear apart their kin so the acidic blood dissolves the chains holding the Queen.
- Whether it's more human or alien, the Newborn at the end viciously averts this. It's first act after being born is matricide. Its second act is to crush a human soldier's head. The only person it doesn't try to hurt is Ripley.
- In X-Men: First Class, Sebastian Shaw lightly scolds Emma, after she punts Erik off their yacht, that, "We don't hurt our own kind." Later, however, he kills Darwin, and his team later go all-out to hurt/kill the X-Men; and of course, he beats up Erik on the sub, while trying to convince him to change sides.
- This is one of the original Seven Commandments of Animal Farm, conveniently discarded when Joseph Stalin Expy Napoleon became convinced there were traitors in his midst.
- Roald Dahl's The BFG. Giants is never killing giants; only humans is. In fact, the BFG claims that humans are the only species on the planet that kill their own kind. Not true in Real Life. In the cartoon, Fleshlumpeater tries to kill the BFG after his plan to imprison the evil giants is exposed, on the basis that he doesn't consider him a true giant anymore, but a "human bean".
- In Poul Anderson's Dominic Flandry series (part of his Technic History), Flandry is an Agent for the Terran Empire. Kidnapped by an alien race, the alien race asserts that they are far more civilized than the Terran Empire, as they would never betray an oath or otherwise be dishonest (except to other, lesser, races, like humans). He soon has the entire leadership of the planet backstabbing each other, noting that their refusal to admit that they, too, can betray each other if the price is right, is what enabled him to succeed in destroying them.
- In the Dragonriders of Pern novels, dragonriders consider killing one another to be unthinkable, because the death of a rider means the rider's dragon dies as well. When an Ax-Crazy Oldtimer attacks F'lar, he doesn't dare to fight back with lethal force until it's revealed that the man's dragon just died in a failed attempt to mate with a queen dragon. Once F'lar knows the situation, he kills without hesitation.
- Enders Game features an odd kind of aversion when a major difference between the Formics and Humanity is discovered. The Formics are an insect-like hive species with millions of drones controlled by singular Hive Queens. They assumed humans functioned like that in their first encounters and simply disposed of what they presumed to be mere drones. The Formics didn't conceptually understand that anything could be "sentient" that wasn't the queen of a hive-mind. When they realized that each individual human was a single sentient creature, their guilt over the number of lives they had taken was enough that they essentially accepted their own near-extinction in retaliation.
- Gulliver's Travels concludes with Gulliver visiting the land of the Houyhnhnms, (a race of intelligent horses) who keep the Yahoos (a race of unintelligent humans) as pack animals, somewhat analogous to how people treat horses. The Houyhnhnms, however, insist that they're better than humans because of how humanely and reasonably they treat each other, whereas we're constantly making wars. They don't treat Yahoos badly — no worse than we treat horses, anyway — but they refuse to try to help human society achieve the level of harmony they claim to have. They don't really have anything to teach Gulliver except that Humans Are the Real Monsters and that Houyhnhnms are great. Considering how ridiculous he makes Gulliver's behaviour after learning this, it's pretty clear that Swift - for all that he was a bit of misanthrope himself - didn't think much of the Houyhnhnms either.
- The Souls from The Host completely neglect to realize that there might be something about humanity (or, hell, any species that isn't their own) worth saving, at least at first. The human version of the trope also makes a bit of an appearance, but given that the Souls not only stole our planet, but also our entire way of life, virtually all of our infrastructure, and the bodies of many loved ones, and are still somewhat set on capturing the rest of us and making us hosts as well... you can kind of see the logic in not particularly liking them much, no matter how "altruistic" and "nice" they may otherwise be.
- The Paris vampires in Interview with the Vampire have only one rule: don't kill another vampire. Breaking that rule is punishable by death.
- Invisible Man: Pretty much the only thing restraining Ras the Exhorter is that he refuses to kill other black people. At first, anyways.
- The Lord of the Rings: Non-villain example: The Hobbits are big on not killing each other. During the Scouring of the Shire sequence, Frodo's orders are not to kill the Hobbits working with the evil Men who have taken over the Shire. To paraphrase him, "We've never killed each other, and we're not going to start now."
- However, the Miller Sandyman says that he heard that Frodo's mother pushed Frodo’s father into a river, and he pulled her in after him. So even if it’s only Malicious Slander, the idea of killing another hobbits is not new in the Shire. And Sméagol killed Déagol a lot of time ago, before Sméagol would be transformed into Gollum.
- Technically Sméagol and Déagol are river folk; similar to Hobbits, but they are never said to be the same race. Also, they were not of the Shire, and Frodo's quote includes the distinction.
- Particularly Anvilicious in The Once and Future King, which claims that ants, termites, and humans are the only animals that make war on each other. This is almost true (chimps also have wars), but just because other animals don't have war doesn't mean they never kill each other.
- Averted in The Silmarillion. Elves killing other Elves is considered an unforgivable sin, but at three points the Sons of Fëanor kill other Elves in their pursuit of the Silmarils.
- Sector General: Justified with the Cinrusskins: as a race of empaths, no sane Cinrusskin has ever killed another as the pain of death is shared with both the victim and the murderer.
- Chains of Violence: In this Star Trek novel, there are the Tseesk, bird-like creatures who enslaved a human colony. They repeatedly talk about how their society cares for each of them, and how humans in the colony they found were nothing like this - and this somehow gives them the right to make humans into slaves and when humans revolt, the Tseesk declare that humans are too much of a threat to be allowed to exist free, and want to exterminate them. Then it turns out that once Tseesk occupied 14 planets, but then they started a Civil War which rendered 10 planets uninhabitable, one planet was inhabitable but all Tseesk there died (this was a planet humans had their colony on), another turned into ice world where surviving Tseesk degenerated into primitive tribes, and only one planet survived mostly intact, thoug they still have to rely on tech from before the war which they now cannot replicate. Not really friendly to each other, either.
- Thieves World: The purpose of the Blue Star Order is to produce very powerful Adepts to fight in the Apocalypse, so they strictly forbid the killing of fellow Adepts. So Adepts (who are not a particularly savory bunch) don't kill each other, because their kind are superior. This probably skirts a subversion, due to the reversal of causality.
- In some stories focusing on the Adepts, there turns out to be a catch to this. One of the keystones to a Blue Star Adept's power is an individual secret that, if learned by another magician, allows the learner to claim the Adept's power (and if learned by a nonmagician can often render the Adept powerless anyway). A powerless Adept is useless in the final battle and is thus fair game. So Adepts never attack each other, nor do they conspire for anybody else to... but that doesn't mean there aren't ultimately lethal vendettas going on.
- The trope is discussed shortly after the climax of Utopia. When forced to choose between saving the insane New Law robot Prospero and the virulently anti-New Law and anti-No Law Simcor Beddle, Caliban decides that Prospero's willingness to kill humans and Beddle's willingness to kill robots were equivalent acts of evil. But Prospero had destroyed other robots, even other New Law robots to achieve his goals, and Caliban had no evidence that Beddle had or was willing to kill other humans for gain. This made Beddle marginally less loathsome than Prospero, and so Caliban shot his friend and rescued his enemy. So basically, an ape that will not kill ape is a better ape than one that will, but that isn't enough to make the first ape a good ape in absolute terms.
- Vladimir Vasilyev's Wolfish Nature duology takes place in an alternate world where humans evolved from dogs. One of the defining moments of canus sapiens sapiens history is the Bio-Correction in the 18th century, when the "wolf gene" was bred out of every person on Earth, essentially creating this trope. The mere thought of killing another human is repulsive. Doing it usually means the person goes insane after the act. Only trained agents (and then only if they go through proper mental conditioning) have a chance of coming out of a mission where they are forced to kill with their psyche relatively intact. Even then they still spend weeks or even months in psychological recovery. There have been no wars since the Bio-Correction. The plot of the duology involves the discovery of an enclave of "wolves" - non-corrected humans who can still kill. It's not so much that the whole world is afraid of them. It's the fact that any country with a live specimen can use that to clone a whole army of merciless killers. At the end of the second novel, the protagonist finds out from a geneticist that the Bio-Correction was a lie of the Clap Your Hands If You Believe variety - if people are conditioned to think they're incapable of killing and will go insane if they do, then this is what will happen. Artistic License – Biology here-Any decent geneticist understands that aggression is not a single gene that can be surgically removed.
- Inverted in Fablehaven. If you aren't a dragon, killing one is considered an insult to their entire race and marks you for death. Luckily, most dragons are locked away in seven sanctuaries and only leave when The End of the World as We Know It is upon them, hence why Vanessa, Kendra, and Seth are dragon slayers and still alive at the end.
- Zig-zagged in A Song of Ice and Fire. In the Iron Islands, it's forbidden for one Ironborn to shed the blood of another, but drowning them or disposing of them in a similarly bloodless manner is perfectly okay.
- The gnomes in the appropriately-named Gnomesaga do not have a history of inter-gnome violence. Plotting against each other, frame-up jobs, and smear campaigns are legitimate, though.
- Drizzt Do'Urden of The Icewind Dale Trilogy went through this. In The Dark Elf Trilogy, Drizzt takes a personal oath never to kill his own kind even as he is being hunted down by them. This works out fine while he's living on the surface and never actually meets any other drow, but in the Legacy of the Drow Series his family show up and he's forced to realize the hypocrisy of refusing to kill his (generally Chaotic Evil and Ax-Crazy) own kind but freely slaying members of races like humans who are usually less evil.
Live Action TV
- In Star Trek: Deep Space Nine, the Founders' highest (or even only) law is "no Changeling has ever harmed another" (until Odo does it - and they ain't too happy about that, as you might imagine). However, as the founders and leaders of the Dominion, a classic example of The Empire, they've harmed pretty much everyone else.
- The Founders themselves follow this law to the letter, but not always in spirit however. First in "The Die is Cast," the Changeling posing as Lovok did not intervene when Garak tortured Odo, but he did go back and help the two of them escape. Also in "The Adversary", the Changeling saboteur tries to convince Odo to escape with him, but is willing to leave him to die with the humanoids if he won't come. Then in "Broken Link", they afflicted Odo with an infection that would have killed him unless he returned to the Great Link for judgment. In this case at least, they admit to internal conflict over the decision (unheard of among the Founders otherwise).
- The Ferengi follow this to a lesser extent: while murder of individuals and the like happens, Quark has a big speech to Sisko in which he points out that while Humans look down on the Ferengi for being greedy capitalists, the Ferengi themselves look down on the Humans and think they're "better". Ferengi never engaged in genocide, slavery, or atomic warfare, which Human history is full of. Indeed, the Ferengi have never even fought a large-scale interstellar war, instead peacefully resolving disputes by (ruthlessly) applying economic pressure, subjugating their own women, and selling weapons to other people who commit genocide and engage in atomic warfare.
- Rule of Acquisition #17 - A contract is a contract is a contract... but only between Ferengi.
- Battlestar Galactica: "Humans don't respect life the way we do," from D'Anna after the Cylons have exterminated billions of humans. Caprica-Six clubbing this self-same D'Anna over the head with a rock is later denounced as "the first act of Cylon-on-Cylon violence in our history" (though it's really not) during a discussion on executing human detainees. Hypocritically, a Five shoots Caprica-Six for speaking out against the executions.
- They've more recently resorted to simply blowing each other to bits with their Basestars.
- Moreover, Three's comment is incorrect, as Cavil-One killed all maturing copies of Daniel-Seven and then contaminated the genetic code out of jealousy.
- The irony is that Caprica-Six prevented D'Anna-Three from committing another act of Cylon-on-Cylon violence. Patricide, in fact.
- The Cylons justify their genocide of humanity with "they would have destroyed themselves anyway". We find that a whole tribe of Cylons actually destroyed themselves. Plus, the modern Cylons mostly destroyed themselves too.
- Suffice to say, the Cylons were really big on hypocrisy.
- Special Unit 2: A particularly nasty specimen of Gargoyle (a mass murderer of humans) makes this comment in the pilot episode.
- The Terrians in Earth 2 are actually incapable of attacking their own kind. A bad guy takes advantage of this by wearing a necklace of Terrian bones, and until it's removed they can't kill him. Of course, when it does finally get taken off, he's dragged underground pretty quickly.
- The Vampires of True Blood have nothing but contempt for humans and will kill them at leisure if they can get away with it. But kill another Vampire and you are in for a world of hurt.
- There are cases of vampires killing other vampires, but smart ones do it in secret and clean up the mess afterwards. After Bill kills Longshadow (Eric's bartender), who was trying to kill Sookie (who had exposed his embezzlement of Eric's money), Eric (being the vampire sheriff of the county) is required to report the crime. When Bill points out that Eric would've killed Longshadow anyway for stealing from him, Eric agrees but claims he would've been more discreet than doing it in front of witnesses.
- A somewhat interesting inversion in Dark Shadows. The Leviathan are instead forbidden from using lethal force against humans. Though it's more to avoid even larger problems. Or it's supposed to be, but Real Life Writes the Plot, and the storyline didn't fully make sense in that regard.
- Averted in Kamen Rider Kiva, where the King and Queen of the Fangire are specifically tasked with killing Fangire who betray their race (King kills those who aid humanity, Queen kills those who fall in love with humans). Of course Maya, the Queen circa 1986, falls in love with a human, which is where our hero comes from. And then Mio, the 2008 Queen falls for the child of that previous union. Occasionally Fangire will fight amongst themselves for more petty reasons, like those attempting to kill Maya in order to gain her power, or the 1986 King's guards who attempt to prevent Maya from rescuing the imprisoned Otoya.
- Routinely averted on Walking with Dinosaurs and its spinoffs (including Primeval). The very first episode has a pair of protomammalian cynodonts eating their own young, and it doesn't improve much from there.
- On Babylon 5, "Minbari do not kill Minbari." Although this tends to be interpreted rather loosely at times or with certain qualifications, it was ultimately what saved humanity from destruction during the Earth-Mimbari War, when it was discovered that humans and Mimbari share souls, which effectively meant humans were Mimbari and thus shouldn't be killed.
- Midway through the fourth season, this one goes right out the window after some slippery-slope logic leads to the Religious Caste population of a city being exiled into the winter wilderness. Most don't survive the long trip on foot to the nearest town. Not long after, the Minbari Federation falls into a full-on civil war.
- Like True Blood, Buffy the Vampire Slayer carries this aspect, but with all demons. In season 4, after being implanted with a chip that shocks him whenever he attempts to attack humans, Spike (a vampire) becomes gleeful when he discovers that he still has the capacity to harm other demons and vampires. He's then ostracized by those who show contempt for anyone willing to kill "their kind."
- Although given all the demon-on-demon violence we see throughout the series, and even more mentioned in backstories, it appears that the real problem Sunnydale's demon community has with Spike is that he keeps helping the Slayer.
- Young Dracula's vampires have no reservations about killing humans, but killing other vampires is strictly forbidden.
- In Lost Girl Fae apparently aren't supposed to feed on each other, as that's what humans are for. Despite this Bo, a succubus, regularly feeds on other Fae and no one objects. This may be because succubi (and the like) have a very pleasurable form of feeding so people are willing to allow it. It could also be that while feeding on other Fae is allowed, killing them to feed is illegal. That again is what humans are for.
- The Observers in Fringe. In the fifth season, they subjugate our world and pollute the air to make it more breathable for them, consequently shortening human lifespans. When Windmark finds that Nina has been experimenting on Observers, he is disgusted and declares humans to be "animals".
- Glassjaw alludes to this trope with their song "Ape Dos Mil"
Yeah, you're the reason
I cannot forget this season
Or the lesson how an ape shall not kill ape
- Gilby Clarke's "Hunting Dogs":
"Hunting dogs don't kill their own."
- In a sidebar titled "Ape Shall Not Kill Ape" in the Feng Shui supplement "Seal of the Wheel," it is noted that the Ascended do not look kindly upon members of the Lodge offing each other because they aren't precisely numerous and the loss of even one of their number is a weighty matter, and thus do not suffer those who make a habit of this to live. Only the Unspoken Name, the leader of the Ascended, can issue a sanction order to kill another Ascended.
- The Eldar in Warhammer 40,000. Killing a fellow Eldar is an unspeakable crime (and not just because they're a Dying Race), which helps fuel that whole Moral Myopia about how a single Eldar life is worth the combined rest of all other sentient life in the galaxy because all the 'lesser' species do horrible stuff to each other. Depending on which accounts you listen to, the Tau may also be an example of this trope to a lesser degree.note
- During the Horus Heresy series it is made pretty clear that prior to the Isstvan V Massacre it was considered taboo for Astartes to kill another Astartes, verging on the unthinkable. It is worth noting, however, the original purpose of the Space Wolves, besides taking part in the Great Crusade, was to be the "Emperor's Executioners". As in, killing other space marines. Although the issue has been deliberately kept nebulous, it seems, given the hints in the literature, they may have performed this specific duty at least once before the Burning of Prospero.
- Werewolf: The Forsaken: Not only does the Oath of the Moon say "The People Shall Not Murder the People," but it's a sin against Harmony to kill another werewolf. Which is tricky, as the titular Forsaken are at war with their fanatical cousins, the Pure, who a) outnumber them and b) don't give two shits about that little provision.
- In a similar way, vampires usually have "We don't kill our own kind" as part of the local law. This leaves a bit of ethical leeway, mind you, since putting a stake into a vampire's heart in this universe sends them into torpor (a coma-like state) instead of killing them, and there usually aren't any rules about staking someone and leaving them for eternity in a pit somewhere. An absolute rule among vampirekind forbids diablerie, devouring another vampire's blood and soul to increase your own power, for the obvious reason that any vampire willing to do that would probably be willing to do it to you - especially since it's addictive.
- The shadow fey of the Ravenloft setting have the Law of Arak, which absolutely forbids them from killing one another. This, of course, doesn't stop them from harming one another in non-fatal ways, or from killing and abusing as many non-fey as they want.
- In Magic: The Gathering, Black has many spells that can instantly destroy creatures, but only if they aren't black themselves (or are artifacts). Considering Black's domain is death magic, it makes sense that Black spells doesn't work on creatures that aren't living to begin with. This represents that the situation is in practice rather than idealism as the trope requires, conforming to Black's worldview. By contrast, White features a handful of spells that make a more arbitrary division in not affecting white cards, representing the spirit of the trope much more effectively.
- It isn't a race thing, but members of the Ranger class in Dungeons & Dragons have a variation. The Favored Enemy ability in some Editions allows them bonuses while fighting certain races that the player is free to choose. Only an evil Rangers may choose his own race for this ability in some of those editions. (It's okay for good-aligned ones to slay villains of their own race, just not select them for this ability.)
- The giff are a race of mercenaries who originated in the Spelljammer campaign but who occasionally appear in other Dungeons & Dragons settings. For the right price, they'll work for nearly anyone as soldiers, enforcers, bodyguards, thugs, legbreakers, or basically anything that involves fighting, but they will not accept a job that involves fighting other giff. Period.
- The Nathrezim (Dreadlords) in Warcraft, who, out of all the Always Chaotic Evil demons have proven time and time again to be the cruelest, darkest and most corrupt of individuals, are forbidden to kill each other. In fact, disregarding this was the ultimate loyalty test Sylvanas prepared for Varimathras, and even then, it turns out he was faking the kill, as his victim survived and is still in league with him.
- The Protoss of StarCraft aren't supposed to kill each other, for fear of falling into racial madness. So naturally they engaged in at least three civil wars since the racial madness and didn't go mad. Turns out they were just scared and created propaganda.
- Similarly, in his inauguration speech, Emperor Arcturus Mengsk of the Terran Dominion says "From this day forward, let no human make war on any other human." That doesn't end up happening, mainly because the United Earth Directorate sent a taskforce to conquer the sector.
- The video ironically subverts Mengst's speech, perhaps intentionally. Even as he declares that no human should make war on any other human, we see one battle-cruiser destroy another, presumably Mengsk's forces spreading his reach in the sector.
- Averted in Mass Effect — members of one race will easily take aim against their kinsman. Shepard at one point can point out that since Garrus is a turian, he shouldn't want to harm Saren (also a turian), but Garrus explains that race is irrelevant with respects to dishing out punishment and if anything, he's even more eager to take out Saren because he considers him to be a disgrace to his species.
- Some party members (including Garrus) will ask why Wrex is willing to fight other krogan. There's a little more justification here, as the krogan are a Dying Race at that point. Wrex brushes it off.
- Wrex actually laments that his fellow Krogan are far more interested in fighting and dying in battle than trying to save their race. Wrex mentions that his progressive ideas to try to rebuild (i.e. stop killing each and focusing repopulating) was what got him exiled, or at least banned from becoming a Krogan leader. If he survives Virmire, he manages to put his plans to save his people into action.
- Averted in Sword of the Stars, where it is revealed that Hiver clans routinely fight inter-clan wars that cause enough deaths to exterminate the human race several times over, and that the Tarka have turned political backstabbing and civil war nearly into an art form by being so accustomed to it. The Liir play this straighter but actually practice what they preach against other species as well provided they don't cause trouble; getting a Liir angry at you is not a good thing. Subverted when it's revealed in the sequel that the Suul'ka, who the Liir always make an exception for, are actually very old Liir elders. The Morrigi really don't care what lesser species do as long as they're willing to trade and don't defile old Morrigi colony sites.
- Fallout: Although the Death Claws, America's genetically-engineered leftovers from the all-destructive great war, are extremely aggressive creatures little better than animals that attack humans on sight, it's implied (from the modified talking Death Claws in the second series) that their basic pack-based society has a rigidly hierarchical, peaceful, ethical pack-based basic society. They were extremely loyal to the pack as a whole, treating it as a family unit rather than having individual families. Fights within a pack are unheard of, and the pack's leader controls many aspects of life, such as choosing and matching female and male deathclaws for reproduction.
- During the Lonesome Road DLC for Fallout: New Vegas, Ulysses reveals that Caesar has instructed his Frumentarii never to kill any couriers since many of them are in fact working for his Legion, thus courier does not kill courier. Courier Six, the player character, can choose not to follow this creed however.
- Gets deconstructed all the way in Arcanum, whose elves claim that they do not kill another elves because if an elf dies "unprepared", his\her soul will never be able to Ascend to a Higher Plane of Existence. (Tarant's elven thugs aren't so polite, though.) Naturally, when Wrath, a dweller of Hidden Elf Village is killed by poison, the first and only suspect is his dwarven apprentice (who also was stupid enough to sign a life-long contract with the elf). It's up to you to prove that Wrath was killed by an elf Sharpe for a woman they almost fought for and whom Sharpe now lives with as husband and wife (almost a perversion in "free-love" elven society) - or dig it even further and discover that "perverted" family idea actually came from Wrath, that Sharpe actually never killed him and that the bastard has committed suicide solely to frame Sharpe.
- The Lunarians in Touhou make a pretty big deal about how disgusting it is that the creatures living on Earth have to kill each other to survive. Of course, that won't stop them from killing anyone on Earth who threatens their own survival on the "deathless" moon.
- In Disgaea: Hour of Darkness, Flonne the angel trainee isn't violent by nature, but over the course of the plot she won't hesitate to fight both demons and humans. Later in the game she finds herself going against other angels, which horrifies her as it is strictly forbidden by angelic law. When she meets up with the Seraph, she confesses her crimes and accepts the consequences, getting turned into a flower. However, because she had good reason and the Seraph is a Reasonable Authority Figure, her real punishment is merely to become a Fallen Angel, which means she can stay with her friends.
- Hyenas from Digger are a tribe of hunter gatherers who view non-hyenas as Prey instead of People. If a Hyena is killed hunting prey, the dead's honor is not a major issue. But if Hyena Kills Hyena, then vengeance must be taken, and the status of the original victim is dependent on the status of the one who takes revenge. This comes into play in the plot when Digger, a wombat, kills a person who killed a hyena, whereupon the killer is revealed to have been another hyena. A friend of the victim tries to keep her friend's status intact by getting Digger officially inducted into the hyena tribe and making the wombat a Person.
- In Sluggy Freelance, Aylee comes up with this argument in the midst of a loyalty tug-of-war between her friends and her race. Thankfully she came to her senses after seeing how readily her race will sacrifice each other for a meal.
- In Dreamwalk Journal killing non-sentient species is justified as long as it's in self-defence. When it comes to sentients, you can rob, cheat and fuck them blind, but causing injury or death is unthinkable.
- In the Dinosaur takeover future arc of The Adventures of Dr. McNinja, the dinosaurs would never kill each other (it's unclear how the carnivorous kind normally feeds). This is problematic for the Dino leader as the humans are trying to rescue the one dinosaur that can save them, and he wants to get rid of him. He has to create a Batman Gambit that would have the humans negligently kill their savior. It nearly works.
- Sometimes invoked by humans suffering from a case of species Cultural Cringe - "At least monkeys don't have wars," etc. Doesn't take them long to be corrected (monkeys in fact do fight over land and resources, and even commit murder within their own groups, just as humans do).