History Main / AlienBlood

[[AC:''WesternAnimation/GravityGalls'']]

->''"Well, I see your problem: You're bleeding tang!"''

* ''ComicBook/TheIncredibleHulk'': The Hulk very often bleeds a ''dark'' green. [[Characters/IncredibleHulkCentralRoguesGallery Red Hulk]] has glowing yellow blood.
* ''Film/JurassicPark'': In the comic adaptation, when the ''Tyrannosaurus'' kills the two ''Velociraptor'', their blood is colored green for some reason, despite it being red in the films.

** Coluans like [[Characters/SupermanBrainiacCharacter Brainiac]] are supposed to have green blood but it's not uncommon for colorists to forget it and color it red anyway.
** ''ComicBook/SupermanSupergirlMaelstrom'', In the beginning of the second chapter, both Superman and Characters/{{Supergirl|TheCharacter}} fight two alien monsters who bleed green.

* ''ComicBook/WeKillMonsters'': The monster Andrew killed to save Jake had blue blood. The [[BigCreepyCrawlies giant insect monster]] had green blood.

* ''ComicBook/TheIncredibleHulk'': The Hulk very often bleeds a ''dark'' green. ComicBook/RedHulk has glowing yellow blood.

** Coluans like ComicBook/{{Brainiac}} are supposed to have green blood but it's not uncommon for colorists to forget it and color it red anyway.
** ''ComicBook/SupermanSupergirlMaelstrom'', In the beginning of the second chapter, both Superman and ComicBook/{{Supergirl}} fight two alien monsters who bleed green.

* ''Literature/TheMachineriesOfEmpire'': [[spoiler:The clone of [[FourStarBadass Jedao]]]] gets a TomatoInTheMirror realization when he gets shot and suffers [[HealingFactor no worse effect]] than a trickle of thick black blood. His body turns out to be [[spoiler:a genetic engineered voidmoth, the same species that form the chassis for the Hexarchate's {{Living Ship}}s.]]

* ''Series/KamenRiderBlade'' has the [[MonsterOfTheWeek Undead]], who bleed green. This serves as a ChekhovsGun as [[spoiler: one of the main characters is an Undead himself and another main character becomes an Undead in the finale, and they both bled this color.]] The gun goes off ''cross-series'', as in ''Series/KamenRiderDecade'', [[spoiler: the BigBad of Ryuki's world turns out to be an Undead]]. This gets carried over in ''Series/KamenRiderZiO'', [[spoiler:where both aforementioned main characters get their Undead powers stolen, and their blood immediately turns red to signify that they've become human again.]]

* ''Webcomic/SluggyFreelance'': The alien that attacks [[RedShirt Dykowski]] has ''[[http://beta.sluggy.com/daily.php?date=971013 concentrated orange juice]]'' for blood. The bad part, according to the crewmember studying the creature, is that it's the ''homestyle kind''.

* ''WesternAnimation/{{Amphibia}}'': [[spoiler: In "All In", during their battle, Sasha cuts Darcy's cheek, and for some reason it spills a single drop of green blood despite Marcy being a human. Presumably this was a side-effect of whatever modifications and techniques Andrias used to save Marcy from his impalement and make her into a suitable vessel for the Core.]]

** [[https://www.google.com/amp/s/www.mediareferee.com/nba-news-did-nba-player-cedi-osman-actually-bleed-yellow-from-his-nose/amp/ Cedi Osman of the Cleveland Cavaliers]] shocked viewers in an incident in December 2022 when, during a basketball game, he suffered facial trauma and began to have what appeared to be a nosebleed-- except said blood was "yellow", much to the bewildermenr of audience and announcers alike. It has been suggested Osman has a nasal infection and the yellow "blood" was really runny mucus, but that didn't stop MemeticMutation on social media to joke that he was actually an alien.

** In ''Series/TheSarahJaneAdventures'' episode [[Recap/TheSarahJaneAdventuresS3E1E2PrisonerOfTheJudoon "Prisoner of the Judoon"]], the Judoon are known to have yellow blood.

** The Sontarans have green blood, as seen in [[Recap/DoctorWhoS22E4TheTwoDoctors "The Two Doctors"]].

-->'''TV Reporter:''' This quiet suburban home [''referring to the Tanners''] is about to run red with blood.\\
'''ALF:''' *''gasps''* Oh, wait, why am I worried? [[ComicallyMissingThePoint My blood is green]].

*** The ExpandedUniverse goes with the idea that Time Lord blood is just a little bit brighter or oranger than human blood. It's sometimes described as basically red, but "orange-ish". (This was partially an attempt to explain away the slightly too bright fake blood used by the BBC's special effects department in the 70s.)

** Cardassian blood is black. This also applies to other animal life native to Cardassia Prime, such as the raw fertilized taspar egg Picard ate in "Chain of Command".

* In the TV series spin-off of ''Series/{{V|1983}}'' the distinctive reverberation of the Visitor's voices was dropped due to the expense of sound dubbing, and the Visitors were given cliché green blood instead. Some viewers missed the plot point about a human who'd cut his hand actually being a [[TheMole Visitor infiltrator]], as they lacked a colour television at the time.
* ''Series/TheXFiles'': The alien-human hybrids bleed green blood that can produce a deadly gas (to non-aliens) when exposed to the atmosphere, as do the aliens themselves. This is {{lampshade|Hanging}}d in "[[Recap/TheXFilesS06E19TheUnnatural The Unnatural]]". Ironically, this means that Mulder can see an alien-human hybrid bleeding and not know there's anything weird going on because [[ColorblindConfusion he's red/green colorblind]]!

** Dragon blood is either green or red, depending on the movie / source. Of course, there are different breeds...

* In Jay Aury's ''Monster Girl Tower'', elves bleed sap, just as a plant would.
* It took nineteen books [[spoiler: and a bad-luck-induced paper cut]] to find out that Aahz from ''Literature/MythAdventures'' has yellow-green blood.
* In the ''Literature/NemesisSaga'', most of the {{Kaiju}} bleed brown blood. Nemesis, on the other hand, bleeds red blood like a human.
* Mr. Croup and Mr. Vandemar from ''Literature/{{Neverwhere}}'' don't even bleed when wounded--just another sign of their inhuman nature.

* In ''Series/The100'', "Nightblood" -- pitch-black blood, revealed to be genetically engineered to withstand high levels of radiation -- is used to identify potential leaders of the Grounders.
* An episode of ''{{Series/ALF}}'' ("Someone to Watch Over Me") has the following:

* Doyle, an android in ''Series/{{Andromeda}}'' "bleeds" superconductor fluid when cut. Due to her in-built WeirdnessCensor, ''she'' sees it as ordinary blood, thinking herself human.

* This happened a couple of times in ''Series/{{Brimstone}}'', where someone Stone suspected of being one of the 113, was revealed to be human because they bled.
* In the ''Series/BuffyTheVampireSlayer'' episode "[[Recap/BuffyTheVampireSlayerS3E18Earshot Earshot]]", a mouthless demon's fluorescent blood splashes onto Buffy's hand and gives her an "aspect of the demon", which turns out to be hearing people's thoughts. Similarly, in the ''Series/{{Angel}}'' episode "[[Recap/AngelS01E08IWillRememberYou I Will Remember You]]", the title character is "infected" with demonic blood that cures him of his vampirism. It's bright neon green.

* In the ''Series/{{CSI}}'' episode "The Theory of Everything", several [[VictimOfTheWeek victims]] with green blood turn up. [[spoiler:It's eventually revealed that this is the result of said victims having massive overdoses of a sulfur-containing medication against migraines in their bodies.]]

* In ''Series/{{Defiance}}'', Castithans have pink blood, which looks like a strawberry milkshake, while Indogenes have silver blood.

** The Daleks, as well as Davros himself, all have green blood. It can then be assumed that the rest of the Kaleds, before their mutation, also had green blood as well — although the Tenth Doctor remarks in dialogue that Kaled blood is the same as human blood but a little purpler.

* In ''Series/{{Farscape}}'', Luxans have clear blood which turns to [[BlackBlood black]] when they get hurt. Black blood is toxic, thus the bleeding has to be [[PercussiveMaintenance stimulated]] until it turns clear again. Nebari have dark blue blood. Delvians, being [[PlantAliens humanoid, sapient plants]], bleed a sap-like substance.
** The Nebari have blue blood
** Pilots have purple blood, but for some reason have red scar-tissue.

* In ''Series/{{Humans}}'', synths have a blue fluid that looks like blood flowing through them.
* Basco ta Jolokia of ''Series/KaizokuSentaiGokaiger'' is shown to have light bluish-green blood [[spoiler:when he dies]].

* ''Series/TheLordOfTheRingsTheRingsOfPower'': All the orcs have it, as usual. Notably, so does Adar, showing that he's also closer to an orc than an Elf, in spite of external appearances.[[note]]Considering Adar is a first-generation orc, it's more than likely that the orcs' appearance got more corrupted over generations of breeding.[[/note]]

** In "[[Recap/TheOuterLimits1995S1E16TheVoyageHome The Voyage Home]]", the alien's blood is green and slimy.
** In "[[Recap/TheOuterLimits1995S4E21PromisedLand Promised Land]]", the Tsal-Khan's blood is black.
** In "[[Recap/TheOuterLimits1995S5E4TheGrell The Grell]]", the titular race's blood can alter DNA, meaning that a human who is exposed to it will turn into a Grell.
** In "[[Recap/TheOuterLimits1995S6E4MainfestDestiny Manifest Destiny]]", the Trion have yellow-green blood. Given that it is rich in copper, it is highly conductive of electricity.
** In "[[Recap/TheOuterLimits1995S7E3ANewLife A New Life]]", Father's species has bright green blood.

* The alien teenagers of ''Series/{{Roswell}}'' have both blood and saliva that looks normal to the naked eye, but not under a microscope.
* While {{Human Alien|s}} Clark Kent bleeds red blood on the few occasions he's hurt enough to bleed in ''Series/{{Smallville}}'', cyborg human Victor Stone bleeds black mech fluids, keeping in line with [[ComicBook/TeenTitans the comics]]. This does not carry over to the ''WesternAnimation/TeenTitans2003'' cartoon, in which it appears to be clear.

* The alien human hybrids on ''Series/TheXFiles'' bled green blood that could produce a deadly gas (to non-aliens) when exposed to the atmosphere, as did the aliens themselves. This got {{lampshade|Hanging}}d in a heartbreakingly awesome way in "[[Recap/TheXFilesS06E19TheUnnatural The Unnatural]]". Ironically, this means that Mulder could see an alien-human hybrid bleeding, and not know there was anything weird going on because [[ColorblindConfusion he's red/green colorblind]]!

* UsefulNotes/{{Christianity}}: Wine is said to actually be the blood of UsefulNotes/{{Jesus}} Christ. [[FlameWar Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. This is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).

* ''ComicBook/Lanfeust'': In ''Lanfeust of the Stars'', due to InconsistentColoring, goules are shown to have blue and black blood on top of red blood. Pathacelces have consistently black blood.

* ''WebAnimation/HelluvaBoss'': As first displayed by Blitzo in "[[Recap/HelluvaBossS1E1MurderFamily Murder Family]]" before being shown off extensively in "[[Recap/HelluvaBossS1E2LooLooLand Loo Loo Land]]", hell-born demons, or at least imps, have near-completely black blood with only a tint of red, unlike humans which bleed a natural full red.

* ''Literature/TheMalleoreon'': Dragons have boiling blood.

The trope, of course, is not limited to HumanAliens (PlantAliens often have green blood, for no apparent reason), but for other types, it doesn't allow for TheReveal in such an effective way.

With HumanAliens, this is a very mild case of ArtisticLicenseBiology: Since the skin is translucent, a creature with different-colored blood wouldn't have the same skin color as a human...if the skin is white. Darker-skinned aliens, or ones with scales, feathers, hair, or something else hiding their skins avert this problem, albeit probably unintentionally.

Assuming it's not red like human blood, aliens and monsters most commonly have blood that's either black or some bright color usually associated with something unhealthy, like orange, green, or yellow (blue and violet are possible, but rare).

* In ''Anime/BlackRockShooter'', the Otherselves bleed their color theme. For example, Black Rock Shooter bleeds blue and Dead Master bleeds green.
* In ''Manga/BlueDrop'', the [[ScaryDogmaticAliens Arume]] have white blood, as do their [[HalfHumanHybrid halfbreed kids]].

* The Aragami of ''Manga/BlueSeed'', being essentially plants, have green blood; this extends to the half-Aragami mutants like Kusanagi, though the latter looks extraordinarily enough not to be mistaken for a normal human. (The color of his blood [[BlackBlood still helps]], considering that he tends to get injured ''a lot''.)
* Most of the Boomers in ''Anime/BubblegumCrisis'' tended to bleed bright orange fluid when damaged, which is unusual for robotic enemies.
* In ''Manga/{{Claymore}}'', the shape shifting, human-eating ''yoma'' have purple blood. The titular half-yoma warriors have red blood, normally, unless they Awaken, permanently turning into their SuperpoweredEvilSide. From then on, they'll bleed purple.
* In a weird aversion and a strange case of FurryConfusion, the blood cells from ''Manga/CellsAtWork'' are shown having red blood, as well as the various pathogens and bacteria which are often killed by the White Blood Cells with lots of LudicrousGibs. (Though probably justified that the blood is really cytoplasm, the inner fluids of a cell, and the red is just artistic license, though it's still bizarre [[MindScrew to see anthropomorphic blood cells ''bleeding''.]])
** In ''Manga/CellsAtWorkCodeBlack'', the White Blood Cells bleed pus. Justified, as it's a symptom of inflammation in the male genitals often caused by STD.
* Jango the demon Panther from episode 7 of ''Manga/CuteyHoney'' had blue blood.
* Most of the demon blood in ''Anime/DevilManCrybaby'' is mustard yellow or dark green.

* In ''Anime/DigimonAdventure2020'', it's shown that Digimon can bleed glowing blue data when [=WereGarurumon=] picks up a broken piece of a blade during a fight with a Zanbamon. Said Zanbamon gets a pair of head wounds that bleed the same stuff right before [[spoiler:[=CresGarurumon=]]] finishes it off.
* Magic-users in ''Manga/{{Dorohedoro}}'' have black particles mixed in with their blood.

* In ''Anime/GenesisClimberMospeada'' (a.k.a ''Anime/{{Robotech}}: The New Generation'') the aliens learn to adopt a human appearance; however their blood is green, which leads to TheReveal that [[spoiler: Aisha/[[DubNameChange Marlene]] is actually an Inbit/Invid]].
* The androids in the ''Anime/{{Ghost In The Shell|Stand Alone Complex}}'' series consistently have white blood, a possible reference to the ''Franchise/{{Alien}}'' franchise. (See below.)
* ''{{Anime/Karas}}'': The Mikura have flourescent green blood.

* Non-alien example from ''Manga/{{Naruto}}'': Tobi bleeds white...''stuff''. [[spoiler: It's discovered that Tobi is in fact Obito and that the crushed half of his body was augmented and held by Spiral Zetsu, who becomes a part of Tobi. That "white stuff" bleeding out of his right half? That's plant matter, for all intents and purposes. He still bleeds normal blood from his left side, however.]]
* In ''Manga/NegimaMagisterNegiMagi'', magical constructs built by the Lifemaker such as the Averruncus series have blood that is white or transparent. Given the way they come into being and what happens when they die, it's likely that they are essentially built out of pure magic and are actually bleeding magical energy.
* Subverted in ''Anime/NeonGenesisEvangelion'', where the robots ([[spoiler:well, bio-engineered giant cyborgs encased in PoweredArmor]]) [[HighPressureBlood bleed lots and lots of red]], but played straight with the blood of the second angel, [[spoiler:used as LCL -- the orange liquid that fills the cockpits]]. Also played straight with Unit-02, which bleeds purple HighPressureBlood.
* The Mulians in ''Anime/RahXephon'' are HumanAliens with blue blood.

* The impetus for the war between two groups of people in "Seiketsu no Hagurama", with one side having red blood and the other with blue blood. The main character and GadgeteerGenius is a blue-blooded prince who discovers to his horror that all his steam-punk looking inventions have been used to eradicate the remaining refugee red bloods by orders of his father and king.
* In ''Manga/SoulEater.'' having black blood is a sign that someone has been [[TheCorruption infected]] with Asura's blood. The blood is not only different in appearance it has also several battle properties.
* The Emilys from ''Anime/StrainStrategicArmoredInfantry'' bleed green.
* Partially subverted in ''Anime/TenchiMuyo'' when Tenchi was surprised to find that alien princess Ayeka had red blood. Villainous Kagato, on the other hand, bled green.
* The dragon from the first episode of ''Anime/TheVisionOfEscaflowne'' bled blue-green blood.
* While not aliens or monsters, transformed wielders from ''Anime/{{Witchblade}}'' would bleed clear crystalline blood.

* In the ''ComicBook/{{Animorphs}}'' graphic novels, Taxxon blood looks like blue foam.

* One character in ''ComicBook/{{Hellboy}}'' has yellow blood because his body contains the [[SealedEvilInACan soul of a worm-like demon]].

* In the comic adaptation of ''Film/JurassicPark'' when the Tyrannosaurus kills the two Velociraptors, their blood for some reason is colored green, despite it being red in the films.

* Even though he's not an alien, That Yellow Bastard from ''ComicBook/SinCity'' had yellow blood, since he's incapable of processing bodily waste, which means his yellow blood is... [[{{squick}} exactly what it looks like]] due to RuleOfCool.
* Harry Vanderspeigle, an alien masquerading as a human from ''ComicBook/ResidentAlien'', bleeds pink blood.

* The ''Franchise/StarWars'' comic ''Jabba the Hutt: Betrayal'' shows a half-dozen or so RubberForeheadAliens who work for Jabba trying to capture their master for [[TheStarscream Bib Fortuna]] but getting attacked by [[ZergRush a horde of ravenous weasel-like creatures who kill and eat everything they see]] - along with Jabba and Bib themselves and four of Jabba's Gamorrean guards. Everyone but Jabba and Bib dies horribly before the creatures can be slaughtered; and the reader has some fun seeing how many different colors of blood ''all'' the species shed before the carnage is over.

* In ''ComicBook/TheUmbrellaAcademy'', [[spoiler:following Vanya's transformation into the White Violin]], she has grey blood.

* In the (now closed) comics ''Gea'', the theme is that extradimensional beings live on the Earth and are the basis of every myth or religion. As in ''Film/MenInBlack'', they try to live under cover, enforced by the Guardians ("Baluardi" in the original), such as the main character. Even when outsiders are outwardly identical to humans (not so common), expect them to be killed in a gore splash of weird blood and alien organs. In one particular case, a team of racist vigilantes kills a group of "outsiders" living in a slum, and are horrified to see that they bleed yellow, smelly liquids. The leader opts for a "foreign disease" and orders the bodies to be burnt.

* In ''Fanfic/HopeForTheHeartless'', the [[OurLichesAreDifferent Horned King]] is shown to have in the place of blood thick and blackish substance that is called blood only because of the lack of a better term.

* ''FanFic/SeventhEndmostVision'': Dr. Lucrecia's blood has flecks that look like white gold in it. [[spoiler: It's probably because she's turned herself into a Tsiviet through self-experimentation.]]

* In ''Fanfic/TheLastDaughter'', it turns out that [[Literature/{{Worm}} Taylor]], who is a Kryptonian in the story, has bright pink blood.

* In the ''Franchise/MassEffect''[=/=]''Anime/{{Robotech}}'' crossover ''Fanfic/ProtocultureEffect'', [[spoiler: Shepard]] is revealed to have green blood when he gets injured. [[spoiler: He explains that this is because he's a [[HalfHumanHybrid quarter-]][[HeelFaceTurn Invid]].]]
* As a Utopian Android [[spoiler: The Headmaster]] in ''Fanfic/RoyalHeights'' is revealed to have a metallic silver fluid for blood after [[spoiler: Yuck kills her by slicing her open with his sword.]]

* In ''Fanfic/ZimTheWarlordIrkenReversion'', Irken blood is shown to be pink. And when Zim tastes some at one point (ItMakesSenseInContext), he notes that unlike human blood, it tastes sweet rather than metallic. Also, it turns loose and greasy as it coagulates, instead of thickening.

* Subverted in ''Fanfic/TheirBond''. After finding [[spoiler:Zelda bleeding out from a suicide attempt]], Impa makes a split decision to take her to the Twili Realm for help. She tells herself that she's lucky the Twili share the same blood as the Hylia, or else the blood transplant would have failed.

* In ''Fanfic/ActuallyImDead'', after dying and subsequently being brought back by the [[ArtifactOfDoom Alicorn Amulet]], Trixie's blood appears to have turned black. [[spoiler: It is later revealed that concentrated ''dark magic'' has replaced her bodily fluids.]]
* In ''Fanfic/DiariesOfAMadman'' changeling blood will always be green, no matter what species they're currently posing as. The protagonist of the story, Navarone, also gains this after his EmergencyTransformation, going from regular human blood to a more viscous amber blood.
* In ''Fanfic/EquestriaAcrossTheMultiverse'': Celestial Ponies, alien ponies from the planet Stellaria, have glowing pink blood. Black Star, a Stellarian supervillain, has black blood due to being mutated by her Void Prism. Celestial/Equusian Pony hybrids like Brightglow and her sisters have a lighter red blood than normal ponies that glows like the Celestials' does.
* Discussed in ''Fanfic/MyFlutteringHeart''. Shining always imagined that Chrysalis bled an abnormal green, but it turns out she bleeds red like a normal pony. Shining finds it unnerving since it makes it harder to dehumanize her.
* In ''Fanfic/MyBravePonyStarfleetMagic'', [[BigGood Grand Ruler Celesto]], a deity alicorn, has a blood type that [[EverythingsBetterWithSparkles sparkles]].

* In ''Fanfic/PrisonIslandBreak'', Shadow Robotnik is repeatedly mentioned as having black blood while everybody else clearly has red blood, because he is canonically part alien.

* The characters in ''Fanfic/FirstAidKitsAndDeepSecrets'' bleed blue. This is because they're evolved from squids and octopuses.
* As is implied in ''VideoGame/Splatoon2'', Inklings and Octolings in ''Fanfic/IveGotYourBack'' have ink running through their veins instead of blood. The ink presumably matches a character's coloring, as Marina's ink is teal.

* In ''Literature/{{Animorphs}}'', Andalite blood is blue-black. Elfangor and Arbron are [[{{Squick}} squicked out]] when they find that humans have red blood. Hork Bajir have black blood, Taxxons have a sickly yellow.

* [[spoiler:''Sympaths'']] bleed blue in J.R. Ward's ''Literature/BlackDaggerBrotherhood'' series.
* In Creator/RobertEHoward's "Literature/RoguesInTheHouse", Franchise/ConanTheBarbarian professes to believe that Nabonidus has black blood when offering to cut his throat and see what color it is.

* ''Literature/{{Discworld}}''
** Discworld elves have green blood too -- just like some other famous fictional beings with pointy ears. The explanation is that they have copper based blood, since elves are [[ColdIron allergic to iron.]]
** Trolls have ... ooze. We're not told what colour it is, but given that they're SiliconBasedLife, grey-to-brown seems likely.

* The K'da of ''Literature/{{Dragonback}}'' have black blood, which shows through their scales when they go into battle mode, making them look even more intimidating.
* The dragons from Creator/AnneMcCaffrey's ''Literature/DragonridersOfPern'' series have green, copper-based blood.
* White Court vampires from ''Literature/TheDresdenFiles'' have blood that is slightly, yet noticeably paler than that of normal humans. In fact, this trope is so common among the Dresdenverse's [[FantasyKitchenSink many, many kinds of monsters]] that by the later books, "Bleed for me" has become the standard test for a mortal trying to decide [[MustBeInvited whether to invite a stranger]] into their home.
* Averted in ''Literature/TheForeverWar''. "All God's creatures got hemoglobin."

* [[SocietyOfImmortals Humanity]] in Creator/RobertReed's ''Literature/GreatShip'' universe have very dark red, almost black blood due to the huge amount of genetic engineering and extra bits of DNA and cells in their bloodstream. The Remoras, twisted by radiation and their own tailored viruses, often have odd blood -- one of the characters, Orleans, has very thick black blood.

* Literature/HerCrownOfFire: After absorbing Lydia Greatcast's blood to become the new Queen, Rose's blood turns a bright, luminous, white.
* Creator/IsaacAsimov's "{{Literature/Hostess}}": The aliens from Hawkin's Planet are yellow-coloured, six-legged space cows. Their blood is clear, and Dr Asimov goes into detail, explaining how the lack of metal in their bloodstream makes it colourless.

* In ''Literature/InheritanceCycle'', Lethrblaka blood is bluish-green, like aged copper.
* In the ''Literature/JacobsLadderTrilogy'', the {{Transhuman}} Exalts have blue or purple blood due to the nanomachine colonies in their bodies. This is noted to affect their skin and eye color as well, particularly Tristen Conn, who's albino.
* The ktrit'zal in ''Literature/JunctionPoint'' have neon-orange blood that smells faintly of lilac, while the tianlong have sky-blue blood.
* Denizens of the House in ''Literature/KeysToTheKingdom'' have blue blood, and some of them, [[spoiler:including Arthur due to TheCorruption,]] have golden blood.
* Lord Belgaroth, the Dread Serpent from ''Literature/KnightsOfDoom'' bleeds green ooze in place of blood, having sold his soul into becoming a powerful demon.
* The Orcs and Trolls in ''Literature/TheLordOfTheRings'' and its associated works have black blood.

* Many dragons, in all forms of media, have boiling blood, including in ''[[Literature/TheBelgariad The Malloreon]]''.

* AlienBlood/{{Webcomics}}
* AlienBlood/WesternAnimation

* AlienBlood/{{Literature}}
* AlienBlood/LiveActionTV

* AlienBlood/WebOriginal

[[folder:Myths & Religion]]
* UsefulNotes/{{Christianity}}: Wine is said to actually be the blood of UsefulNotes/{{Jesus}} Christ. [[FlameWar Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. This is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).
* Myth/ClassicalMythology: Gods and other divine beings don't bleed red blood but a golden glowing substance called Ichor.

* AlienBlood/AnimeAndManga
* AlienBlood/ComicBooks
* AlienBlood/FanWorks

[[folder:Films -- Animation]]
* ''WesternAnimation/HeavyMetal'': The mutants in the Taarna segment have green blood, as a side effect of being tainted by the Loc Nar's power.
* ''WesternAnimation/{{Hercules}}'': The Hydra's blood is green slime.
* ''Anime/Interstella5555'': Shep's blood is yellow.
* ''WesternAnimation/LiloAndStitch'': Stitch's blood is pink, as seen when Gantu extracts some to put into some gun turrets so they will lock onto his every move if he tries to escape.
* ''WesternAnimation/TheNightmareBeforeChristmas'': Though not seen directly, the song "Kidnap the Sandy Claws" mentions being "beaten black and green", suggesting this is the case.
* ''WesternAnimation/PussInBoots2011'': In the flashback where Puss and Humpty become BloodBrothers, Humpty bleeds yolk instead of blood.
* ''Animation/TheReturnOfHanuman'': Rahu and Ketu (who are definitely not human)'s blood is green.
* ''WesternAnimation/TheSeaBeast'': In the fight against the brickleback at the start of the film, its severed tentacles bleed inky-black blood.

[[folder:Myths & Religion]]
* UsefulNotes/{{Christianity}}: Wine is said to actually be the blood of UsefulNotes/{{Jesus}} Christ. [[FlameWar Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. This is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).
* Myth/ClassicalMythology: Gods and other divine beings don't bleed red blood but a golden glowing substance called Ichor.

* ''WesternAnimation/HeavyMetal'': The mutants in the Taarna segment have green blood, as a side effect of being tainted by the Loc Nar's power.

* In ''Animation/HappyHeroes'', Shapeshifter's blood is green, while Kalo's blood is blue.

[[folder:Films — Animation]]
* ''{{WesternAnimation/Hercules}}'': The Hydra's blood is green slime.
* In ''Anime/Interstella5555'', Shep's blood is yellow.
* Stitch's blood from ''WesternAnimation/LiloAndStitch'' is pink, as seen when Gantu extracts some to put into some gun turrets so they will lock onto his every move if he tries to escape.
* Though not seen directly, the song "Kidnap the Sandy Claws" in ''WesternAnimation/TheNightmareBeforeChristmas'' mentions being "beaten black and green", suggesting this is the case.
* Rahu and Ketu (who are definitely not human)'s blood in ''Animation/TheReturnOfHanuman'' is green.
* The mutants in the Taarna segment of ''WesternAnimation/HeavyMetal'' have green blood, as a side effect of being tainted by the Loc Nar's power.[[/folder]]

** In an aversion of the "HumanAliens have coloured blood and pink skin" error, the Tau do not look like humans partly ''because'' they have deep blue-purple blood (their equivalent of haemoglobin uses cobalt instead of iron), which has the expected effect on their skin tone. In one of the Literature/CiaphasCain novels, Amberley Vail notes that it smells horrible.

** There are several variants where "blood" equates to "living animals" -- centipedes, ants, beetles, leeches, maggots, worms, even ''mice and small birds''. In all cases, these attack the person who wounded you, usually causing minor damage and fighting penalties (birds just cause penalties and mice cause just damage).

** Protoplasm means that if you die, a BlobMonster will emerge and attack your killers.

* In ''VisualNovel/DraKoi'' dragons bleed gold. When in human form, this also includes normal human blood.
* Zigzagged in ''VisualNovel/MarcoAndTheGalaxyDragon''. While many aliens have purple blood and a few have green blood, some—like [[DemBones El Skeleton]] and [[HumanAliens Gargouille]]—have red blood.
* In ''VisualNovel/{{Policenauts}}'', the "Frozeners" have white artificial blood, called "first-generation" blood, which is said to be simpler than the "third-generation" blood used on Home (Earth). It's also said to transport oxygen more efficiently than regular blood, making blood loss less of a threat.

* Sea cucumbers have yellow blood. Nobody knows why, as the yellow pigment doesn't appear to serve any function in gas transport like most bloodborne pigments do.

* UsefulNotes/{{Christianity}}: Wine is said to actually be the blood of UsefulNotes/{{Jesus}} Christ. [[Administrivia/RuleOfCautiousEditingJudgement Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. This is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).

[[folder:Mythology and Religion]]
* Wine is said to actually be the blood of Jesus Christ. [[Administrivia/RuleOfCautiousEditingJudgement Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. Generally this is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).
* Gods and other divine beings in Greek Mythology don't bleed red blood but a golden glowing substance called Ichor.

* [[AlienBlood/{{Film}} Film -- Live-Action]]

* The Nephilim of ''TabletopGame/{{Malifaux}}'' have black blood that burns any non-Nephilim that come in contact with it.

* In the ''TabletopGame/DungeonsAndDragons'' setting ''Oriental Adventures'', one way to identify octopus hengeyokai (shapeshifters) is that, even in human form, they have blue blood.

%%%

%%%

!!Examples:

[[folder:Anime & Manga]]
* In ''Anime/BlackRockShooter'', the Otherselves bleed their color theme. For example, Black Rock Shooter bleeds blue and Dead Master bleeds green.
* In ''Manga/BlueDrop'', the [[ScaryDogmaticAliens Arume]] have white blood, as do their [[HalfHumanHybrid halfbreed kids]].
* ''Anime/BlueGender'': The Blue initially have red blood, but the new breed that shows up towards the end of the series bleed purple.
* The Aragami of ''Manga/BlueSeed'', being essentially plants, have green blood; this extends to the half-Aragami mutants like Kusanagi, though the latter looks extraordinarily enough not to be mistaken for a normal human. (The color of his blood [[BlackBlood still helps]], considering that he tends to get injured ''a lot''.)
* Most of the Boomers in ''Anime/BubblegumCrisis'' tended to bleed bright orange fluid when damaged, which is unusual for robotic enemies.
* In ''Manga/{{Claymore}}'', the shape shifting, human-eating ''yoma'' have purple blood. The titular half-yoma warriors have red blood, normally, unless they Awaken, permanently turning into their SuperpoweredEvilSide. From then on, they'll bleed purple.
* In a weird aversion and a strange case of FurryConfusion, the blood cells from ''Manga/CellsAtWork'' are shown having red blood, as well as the various pathogens and bacteria which are often killed by the White Blood Cells with lots of LudicrousGibs. (Though probably justified that the blood is really cytoplasm, the inner fluids of a cell, and the red is just artistic license, though it's still bizarre [[MindScrew to see anthropomorphic blood cells ''bleeding''.]])
** In ''Manga/CellsAtWorkCodeBlack'', the White Blood Cells bleed pus. Justified, as it's a symptom of inflammation in the male genitals often caused by STD.
* Jango the demon Panther from episode 7 of ''Manga/CuteyHoney'' had blue blood.
* Most of the demon blood in ''Anime/DevilManCrybaby'' is mustard yellow or dark green.
* ''Manga/DGrayMan'' both averts and plays it. The human-based machines akumas have red "blood-oil" (that looks exactly like regular blood) but superpowered but humans Noah have their blood turn black under certain circumstances.
* In ''Anime/DigimonAdventure2020'', it's shown that Digimon can bleed glowing blue data when [=WereGarurumon=] picks up a broken piece of a blade during a fight with a Zanbamon. Said Zanbamon gets a pair of head wounds that bleed the same stuff right before [[spoiler:[=CresGarurumon=]]] finishes it off.
* Magic-users in ''Manga/{{Dorohedoro}}'' have black particles mixed in with their blood.
* ''Franchise/DragonBall'':
** Originally, Great Demon King Piccolo and his reincarnation had red blood until the early Saiyan Saga, but after their Namekian heritage was revealed, all Namekians from there on have purple blood, including Piccolo himself. ''Dragon Ball Kai'' later re-colored Piccolo's red blood into purple.
** ''Anime/DragonBallZ'' has a few other instances as well. Most villains bled purple (e.g. Cell and Buu) or magenta (e.g. Freeza), but occasionally you'd see something weirder. For instance, Zarbon (one of Freeza's henchmen) bled dark blue, which was also reflected in his skin color.
** There was at least one instance of a retconned blood color: Piccolo's blood was red in an early ''DBZ'' episode, censored to light green in the dub. It later became purple and was no longer censored.
** Freeza's blood color is also retconned. In the series his blood was dark magenta, however in ''Anime/DragonBallZResurrectionF'' it's purple.
** Perfect Cell is shown bleeding either green or purple, changing from one episode to the next.
** Captain Ginyu has dark blue blood.
* In ''Anime/GenesisClimberMospeada'' (a.k.a ''Anime/{{Robotech}}: The New Generation'') the aliens learn to adopt a human appearance; however their blood is green, which leads to TheReveal that [[spoiler: Aisha/[[DubNameChange Marlene]] is actually an Inbit/Invid]].
* The androids in the ''Anime/{{Ghost In The Shell|Stand Alone Complex}}'' series consistently have white blood, a possible reference to the ''Franchise/{{Alien}}'' franchise. (See below.)
* ''{{Anime/Karas}}'': The Mikura have flourescent green blood.
* In the {{Hentai}} anime ''La Blue Girl'', Shikima demons have blue blood; this is also the case of the heroine, Miko Mido (hence the title), since she is {{half|HumanHybrid}}-Shikima.
* Non-alien example from ''Manga/{{Naruto}}'': Tobi bleeds white...''stuff''. [[spoiler: It's discovered that Tobi is in fact Obito and that the crushed half of his body was augmented and held by Spiral Zetsu, who becomes a part of Tobi. That "white stuff" bleeding out of his right half? That's plant matter, for all intents and purposes. He still bleeds normal blood from his left side, however.]]
* In ''Manga/NegimaMagisterNegiMagi'', magical constructs built by the Lifemaker such as the Averruncus series have blood that is white or transparent. Given the way they come into being and what happens when they die, it's likely that they are essentially built out of pure magic and are actually bleeding magical energy.
* Subverted in ''Anime/NeonGenesisEvangelion'', where the robots ([[spoiler:well, bio-engineered giant cyborgs encased in PoweredArmor]]) [[HighPressureBlood bleed lots and lots of red]], but played straight with the blood of the second angel, [[spoiler:used as LCL -- the orange liquid that fills the cockpits]]. Also played straight with Unit-02, which bleeds purple HighPressureBlood.
* The Mulians in ''Anime/RahXephon'' are HumanAliens with blue blood.
* ''Franchise/SailorMoon'':
** Judging from the scenes where Nephrite is bleeding and dying, the Dark Kingdom Generals from the first season of ''Anime/SailorMoon'' have green blood, even though they have normal human skin tones and the insides of their mouths are pink (as can clearly be seen on any of the numerous occasions when they EvilLaugh).
** Zoisite, at least, has been shown to have normal red blood (in episode 34 Mamoru injures him with his rose). Nephrite is apparently [[BlackBlood somewhat of a case of censorship]].
** Kunzite appears to have hot pink blood (in the episode where a Crescent Beam cuts his hands). Perhaps he's a Klingon?
** In a rather bizarre reversal of this, the aliens Eiru and An from the first arc of the second season have red blood, even though they have green skin and the insides of their mouths are clearly also green.
* The impetus for the war between two groups of people in "Seiketsu no Hagurama", with one side having red blood and the other with blue blood. The main character and GadgeteerGenius is a blue-blooded prince who discovers to his horror that all his steam-punk looking inventions have been used to eradicate the remaining refugee red bloods by orders of his father and king.
* In ''Manga/SoulEater.'' having black blood is a sign that someone has been [[TheCorruption infected]] with Asura's blood. The blood is not only different in appearance it has also several battle properties.
* The Emilys from ''Anime/StrainStrategicArmoredInfantry'' bleed green.
* Partially subverted in ''Anime/TenchiMuyo'' when Tenchi was surprised to find that alien princess Aeka had red blood. Villainous Kagato, on the other hand, bled green.
* The dragon from the first episode of ''Anime/TheVisionOfEscaflowne'' bled blue-green blood.
* While not aliens or monsters, transformed wielders from ''Anime/{{Witchblade}}'' would bleed clear crystalline blood.
[[/folder]]

[[folder:Comic Books]]
* In the ''ComicBook/{{Animorphs}}'' graphic novels, Taxxon blood looks like blue foam.
* ''Creator/DCComics''' Coluans like ComicBook/{{Brainiac}} are supposed to have green blood but it's not uncommon for colorists to forget it and color it red anyway.
* The Sewell family of ''ComicBook/{{Copperhead}}'', in addition to having a single eye and two extra arms, bleed gouts of green when injured.
* One character in ''ComicBook/{{Hellboy}}'' has yellow blood because his body contains the [[SealedEvilInACan soul of a worm-like demon]].
* ''ComicBook/{{Horizon}}'': The natives of the planet Valius have blue blood.
* [[ComicBook/IncredibleHulk Hulk]] very often bleeds a ''dark'' green. ComicBook/RedHulk has glowing yellow blood.
* In the comic adaptation of ''Film/JurassicPark'' when the Tyrannosaurus kills the two Velociraptors, their blood for some reason is colored green, despite it being red in the films.
* ''ComicBook/PaperinikNewAdventures'': Xerbians have black-ink blood, as shown in a flashback. If this still applies to Xadhoom, who became a PhysicalGod and an {{Energy Being|s}}, is up to debate.
* Even though he's not an alien, That Yellow Bastard from ''ComicBook/SinCity'' had yellow blood, since he's incapable of processing bodily waste, which means his yellow blood is... [[{{squick}} exactly what it looks like]] due to RuleOfCool.
* Harry Vanderspeigle, an alien masquerading as a human from ''ComicBook/ResidentAlien'', bleeds pink blood.
* ''ComicBook/StarTrekEarlyVoyages'': In "The Fallen, Part Two", it can be seen that the Chakuun have blue blood.
* The ''Franchise/StarWars'' comic ''Jabba the Hutt: Betrayal'' shows a half-dozen or so RubberForeheadAliens who work for Jabba trying to capture their master for [[TheStarscream Bib Fortuna]] but getting attacked by [[ZergRush a horde of ravenous weasel-like creatures who kill and eat everything they see]] - along with Jabba and Bib themselves and four of Jabba's Gamorrean guards. Everyone but Jabba and Bib dies horribly before the creatures can be slaughtered; and the reader has some fun seeing how many different colors of blood ''all'' the species shed before the carnage is over.
* You will get familiar with the bright pink energon that passes for Cybertronian blood reading any of the comic books written (or co-written) by James Roberts (''ComicBook/TheTransformersMoreThanMeetsTheEye'', ''ComicBook/TheTransformersDarkCybertron'', special mention going to ''ComicBook/TheTransformersLastStandOfTheWreckers'').
** There are two exceptions, however: Tailgate's innermost energon is green [[spoiler:because he's suffering from cybercrosis, and his innermost energon has curdled]], and Brainstorm has a more reddish-orange colour [[spoiler:because he's been infected with the Dead Universe]].
* In ''ComicBook/TheUmbrellaAcademy'', [[spoiler:following Vanya's transformation into the White Violin]], she has grey blood.
* ''ComicBook/WonderWoman1987'': Medusa's blood is blue.
* ''ComicBook/XMen'': The XenomorphXerox species Brood have green blood, though thankfully without any acidic properties.
* In the (now closed) comics ''Gea'', the theme is that extradimensional beings live on the Earth and are the basis of every myth or religion. As in ''Film/MenInBlack'', they try to live under cover, enforced by the Guardians ("Baluardi" in the original), such as the main character. Even when outsiders are outwardly identical to humans (not so common), expect them to be killed in a gore splash of weird blood and alien organs. In one particular case, a team of racist vigilantes kills a group of "outsiders" living in a slum, and are horrified to see that they bleed yellow, smelly liquids. The leader opts for a "foreign disease" and orders the bodies to be burnt.

[[folder:Fan Works]]
* ''Fanfic/AbraxasHrodvitnon'': [[Characters/AbraxasHrodvitnon Monster X]] has the same black blood as Ghidorah, as does the Many "patchwork body" of [[spoiler:Ni/Elder Brother]].
* In ''Fanfic/ActuallyImDead'', after dying and subsequently being brought back by the [[ArtifactOfDoom Alicorn Amulet]], Trixie's blood appears to have turned black. [[spoiler: It is later revealed that concentrated ''dark magic'' has replaced her bodily fluids.]]
* ''Fanfic/BecomingATrueInvader'': Fefians have blue goo for blood, [[BizarreAlienBiology which has different attributes depending on which part of their bodies it comes from]], ranging from burning like acid to causing paralysis.
* In ''Fanfic/DiariesOfAMadman'' changeling blood will always be green, no matter what species they're currently posing as. The protagonist of the story, Navarone, also gains this after his EmergencyTransformation, going from regular human blood to a more viscous amber blood.
* In ''Fanfic/EquestriaAcrossTheMultiverse'': Celestial Ponies, alien ponies from the planet Stellaria, have glowing pink blood. Black Star, a Stellarian supervillain, has black blood due to being mutated by her Void Prism. Celestial/Equusian Pony hybrids like Brightglow and her sisters have a lighter red blood than normal ponies that glows like the Celestials' does.
* The characters in the ''VideoGame/{{Splatoon}}'' fic ''Fanfic/FirstAidKitsAndDeepSecrets'' bleed blue. This is because they're evolved from squids and octopuses.
* ''Fanfic/GuardiansWizardsAndKungFuFighters'':
** Lurden blood is noted to be thicker and a darker shade of red than that of humans.
** [[HellHound Sniffer's]] blood is a sickly green.
* In ''Fanfic/HopeForTheHeartless'', the [[OurLichesAreDifferent Horned King]] is shown to have in the place of blood thick and blackish substance that is called blood only because of the lack of a better term.
* As is implied in ''VideoGame/Splatoon2'', Inklings and Octolings in ''Fanfic/IveGotYourBack'' have ink running through their veins instead of blood. The ink presumably matches a character's coloring, as Marina's ink is teal.
* In ''Fanfic/TheLastDaughter'', it turns out that [[Literature/{{Worm}} Taylor]], who is a Kryptonian in the story, has bright pink blood.
* Discussed in ''Fanfic/MyFlutteringHeart''. Shining always imagined that Chrysalis bled an abnormal green, but it turns out she bleeds red like a normal pony. Shining finds it unnerving since it makes it harder to dehumanize her.
* In ''Fanfic/MyBravePonyStarfleetMagic'', [[BigGood Grand Ruler Celesto]], a deity alicorn, has a blood type that [[EverythingsBetterWithSparkles sparkles]].
* ''Fanfic/MyLittlePonyNakamaIsMagic'': When the [[Manga/OnePiece Straw Hats]] manage to finally actually wound him, [[WesternAnimation/MyLittlePonyFriendshipIsMagic Discord]] spits up green blood.
* ''Fanfic/TheNewAdventuresOfInvaderZim'':
** Irkens are shown to have dark green blood. Which is apparently not edible to vampires, incidentally.
** [[OurVampiresAreDifferent Norlock]] has a black ichor in place of blood.
* ''Fanfic/TheNightUnfurls'':
** What do you think the red stuff in Kyril's [[VideoGame/BloodBorne Blood Vials]] are?! It is worth mentioning that Kyril ''never'' gives anyone a single vial, for fear of a second Beast Plague. Even his own apprentices are never shown using those when they are injured. On another note, the vials not only heal Kyril's wounds, but also ''repairs his clothes'' as well, for some reason.
** It is mentioned that [[spoiler:Kyril's own blood is used to empower his apprentices.]] When confronted by [[spoiler:Sanakan and Hugh in terms of whether they would eventually be twisted into blood-starved monsters, he reassures them that so long as he is [[DomainHolder the master of the Dream]], this will not come to pass.]]
* ''Fanfic/OneHellOfAnAfternoon'': Taylor's blood is green and glowing now, like the vat she got dumped into, which concerns her a bit.
* In ''Fanfic/PrisonIslandBreak'', Shadow Robotnik is repeatedly mentioned as having black blood while everybody else clearly has red blood, because he is canonically part alien.
* In the ''Franchise/MassEffect''[=/=]''Anime/{{Robotech}}'' crossover ''Fanfic/ProtocultureEffect'', [[spoiler: Shepard]] is revealed to have green blood when he gets injured. [[spoiler: He explains that this is because he's a [[HalfHumanHybrid quarter-]][[HeelFaceTurn Invid]].]]
* Averted in ''Fanfic/RemnantInferisDOOM''. The demons bleed the same blood as any other human or Faunus. This makes them ''very'' disturbing for the Beacon students to fight.
-->'''Ruby''' ''(thoughts)'': Who would have thought demons could bleed so much. Or even bleed the red stuff at all.
* As a Utopian Android [[spoiler: The Headmaster]] in ''Fanfic/RoyalHeights'' is revealed to have a metallic silver fluid for blood after [[spoiler: Yuck kills her by slicing her open with his sword.]]
* In the works of ''Creator/DetsniyOffSkiword'', it's often said that the undead have no blood, so upon sustaining heavy damage, they instead [[InsaneTrollLogic spew out oil]].
* Subverted in ''Fanfic/TheirBond''. After finding [[spoiler:Zelda bleeding out from a suicide attempt]], Impa makes a split decision to take her to the Twili Realm for help. She tells herself that she's lucky the Twili share the same blood as the Hylia, or else the blood transplant would have failed.
* ''WebAnimation/MinecraftEndventures'': Enderman blood is purple in episode 11 and 12. Before then, they had no blood.
* In ''Fanfic/ZimTheWarlordIrkenReversion'', Irken blood is shown to be pink. And when Zim tastes some at one point (ItMakesSenseInContext), he notes that unlike human blood, it tastes sweet rather than metallic. Also, it turns loose and greasy as it coagulates, instead of thickening.

[[folder:Films — Animation]]
* ''{{WesternAnimation/Hercules}}'': The Hydra's blood is green slime.
* In ''Anime/Interstella5555'', Shep's blood is yellow.
* Stitch's blood from ''WesternAnimation/LiloAndStitch'' is pink, as seen when Gantu extracts some to put into some gun turrets so they will lock onto his every move if he tries to escape.
* Though not seen directly, the song "Kidnap the Sandy Claws" in ''WesternAnimation/TheNightmareBeforeChristmas'' mentions being "beaten black and green", suggesting this is the case.
* Rahu and Ketu (who are definitely not human)'s blood in ''Animation/TheReturnOfHanuman'' is green.
* The mutants in the Taarna segment of ''WesternAnimation/HeavyMetal'' have green blood, as a side effect of being tainted by the Loc Nar's power.[[/folder]]

[[folder:Films — Live-Action]]
* In Creator/TimBurton's ''Film/AliceInWonderland2010'' the Jabberwocky's blood is purple.
* The [[Characters/AlienMain Xenomorphs]] in ''Franchise/{{Alien}}'' have yellow, [[BloodyMurder highly acidic blood that can burn through steel]], while the androids have milky white fluid inside them instead of blood. In the later movies, the blood is green instead, possibly as a result of morphing with human DNA. A reasonable theory, however would be that the acid doesn't actually have the same purpose as blood -- it's more of a defense mechanism that makes its victims reluctant to kill it.
** The [[Characters/AlienCovenant Neomorphs]] in ''Film/AlienCovenant'' have similarly green-yellow acidic blood.
** And the Engineers' blood in ''Film/{{Prometheus}}'' appears to be a light green color.
* ''Film/AttackOfTheEyeCreatures'': The Eye Creatures have very thick, blackish brownish blood. It looks very sickening.
* Many viewers mistakenly assume that the Penguin (Danny [=DeVito=]) in ''Film/BatmanReturns'' has greenish-black blood, since he's seen spitting up a substance of that color in his death scene. However, we also see him bleeding red blood from his bat bite wounds, and according to the crew members, it's supposed to be bile, and it can be seen trickling out of his mouth at multiple points in the film, it just intensified after he fell into a pool of toxic waste.
* ''Film/BladeII'': Caused by Executive Meddling from the censors. For some reason they needed to have some of the characters such as the (non-Reaper) vampire Damaskinos bleed green to get an R rating, even if there's gallons upon gallons of red-coloured gore anyway.
* ''{{Film/Critters}}'': The Crites have green blood.
* [[spoiler:The Strangers]] from ''Film/DarkCity'' melt into goo or turn red and dissolve into flakes when they die; the [[spoiler:dead human bodies they use as vessels]] have black blood.
* ''Film/TheDarkCrystal'': The death of All-Maudra Mayrin seems to indicate Gelfling blood is pink. However, all of the comics depict their blood as deep red like that of humans.
* In ''Film/DemonKnight'', the Collector and his minions' blood is green.
* In ''The Devil's Rain'', the members of the satanic cult bleed green or brown blood after they've surrendered their souls to Satan.
* Averted in ''Film/District9'', where the InsectoidAliens bleed a scarlet red. Possibly done to show that despite their appearance, they are not monstrous at all. Zigzagged with [[spoiler:Wikus]], who at one point has a nosebleed of a black fluid and vomits up black goo, but still ''bleeds'' red.
* Buckets of black and green Deadite blood get thrown around in the ''Franchise/EvilDead'' movies.
* ''Film/TheFifthElement'': Diva Plavalaguna, the alien opera singer, has royal blue blood.
* ''Film/{{Flash Gordon|1980}}'':
** Ming the Merciless has dark green blood.
** The prince Ming stabs in the first court scene has blue blood.
** When Klytus, Ming's Dragon, gets ImpaledWithExtremePrejudice on a bunch of spikes, his entire body melts into black fluid.
** General Kala's blood is also black, although she doesn't melt.
** The Arborian who dies of the HandInTheHole trope has pale green goo on his stung arm, but it's unclear if it's meant to be his blood or the creature's venom.
* ''Film/FreddysDeadTheFinalNightmare'': Freddy bleeds green when he slices his fingers off.
* Not quite aliens, but one of the first hints that the employees of the Titty Twister in ''Film/FromDuskTillDawn'' aren't human is a close-up of a knife which was just used to stab one of them. Instead of blood, it's covered in a translucent goo.
* The monster ''Film/{{Gamera}}'' has green blood. Not that it's ever likely to be useful as TheReveal, but notable anyhow for the sheer volume you will be seeing in any given movie -- that turtle bleeds like a GarbageWrestler… His enemy Gyaos' blood was pink.
* ''Film/GodsOfEgypt'': Gods have liquid gold in their veins instead of blood.
* ''Franchise/{{Godzilla}}'':
** ''Film/GodzillaVsMechagodzilla'': The Simians' blood is a grayish-green color.
** Strangely, the [[Characters/GodzillaTheGodzillas Heisei incarnation of Godzilla]] bleeds green blood in ''Film/TheReturnOfGodzilla'' and ''Godzilla vs. Biollante'', but his blood color was changed to red afterwards.
** ''Film/GodzillaVsBiollante'': [[Characters/{{Godzilla}} Biollante]] has green blood, possibly due to her chlorophyll.
** ''Film/GodzillaAndMothraTheBattleForEarth'': When Godzilla digs into Battra's flesh, he starts bleeding mustard-yellow blood all over him.
** ''Film/GodzillaVsDestoroyah'': Destoroyah has lime green or yellow blood. He spits or bleeds huge amounts of it in the later phases of the final battle.
** Franchise/MonsterVerse: There's quite a few examples.
*** ''Film/Godzilla2014'': The [[Characters/MonsterVerseKaiju MUTOs]] bleed a thick, dark-looking blood, described in the novelization as being like sticky ichor.
*** ''Film/GodzillaKingOfTheMonsters2019'': A couple cases. When Mothra stabs Rodan with her stinger, magma can be seen oozing out of his sternum, and special features confirm that Rodan has literal magma for blood as one of the physical adaptations that allow him to survive while sleeping inside an active volcano. [[Characters/MonsterVerseKingGhidorah Ghidorah]] [[spoiler:who unlike the other Titans is an ''actual'' alien]], bleeds black blood that in the novelization is described as being similar to oil.
*** ''Film/GodzillaVsKong'': The Warbats have bright-green blood.
* The Tao Tie from ''Film/TheGreatWall'' bleed green blood, befitting their emerald-jade appearance.
* From ''Film/GreenLantern2011'' when a freaked-out Hal is trying to help a dying Abin Sur:
-->'''Hal:''' Hey-hey-hey, listen, we're gonna get you to a hospital, okay? Okay? One th-th-that carries...purple blood.
* The aliens from ''Film/TheGreenSlime'': killing them is a bad idea because the puddles of light green blood will eventually regenerate into numerous more creatures.
* ''Film/{{Gremlins}}'': The [[Characters/GremlinsMogwaiAndGremlins Gremlins]] bleed (often copious amounts of) green goo, whereas the Mogwai bleed red.
* ''Film/HalloweenTheCurseOfMichaelMyers'': [[spoiler:Michael bleeds yellow-green blood while Tommy beats him with a pipe]].
* ''Franchise/{{Hellboy}}'':
** Karl Ruprect Kroenen from ''Film/{{Hellboy|2004}}'' has sand instead of blood. He's not an alien, but a [[StupidJetpackHitler Nazi cyborg]] [[NinjaPirateZombieRobot zombie]] who's been through more than {{Rasputin|ianDeath}}. It's simply the years of abuse and being in a state of undeath that caused his blood to dry up. Also in the ''Hellboy'' movies (and [[WesternAnimation/HellboyAnimated animated movies]], but not the comics), Abe Sapien has blue blood.
** In ''Film/HellboyIITheGoldenArmy'', the elven royalty has greyish yellow blood.
* ''Film/IndependenceDay'': The [[Characters/IndependenceDay alien pilot]] Grey kills in the first film is bleeding bluish-purple BloodFromTheMouth.
** ''Film/IndependenceDayResurgence'': In the sequel however, an injured alien that gets decapitated bleeds green, and [[spoiler:the Queen]] likewise bleeds green slime.
* Downplayed in ''[[Film/It2017 It]]'' and ''Film/ItChapterTwo''. IT's blood appears to be standard human blood, but what makes it weird is that it floats in mid-air rather than falling.
* In Disney's ''Film/JohnCarter'', Martians have blue blood. Despite all references to their blood in [[Literature/JohnCarterOfMars the books]] indicating that it was red.
* In ''Film/Leprechaun4InSpace'', the Leprechaun goes into outer space and teams up with an alien princess. The princess looks just like a sexy blonde human woman (think Anna Nicole Smith with a very upper-class American accent); but then the human characters happen upon some samples of her blood...and they're emerald-green!
* Franchise/MarvelCinematicUniverse:
** Zehobereians like Gamora bleed green blood. [[spoiler:In ''Film/AvengersInfinityWar'', when Thanos throws Gamora to her death in Vormir, there is a shot of her body with greenish blood around her head. This is contrasted when Natasha Romanoff suffers the same fate in ''Film/AvengersEndgame'', except this time the blood is the very human red.]]
** Used as a BaitAndSwitch in ''Film/{{Captain Marvel|2019}}''. The titular character is seen with green blood in the opening scene, suggesting that she is an alien. [[spoiler:The blood actually belongs to someone else, as Carol Danvers is a human and does have red blood.]]
* Whenever aliens are blown up in the ''Film/MenInBlack'' films we see strangely-colored fluids. Mikey's blood is bright blue. Jack Jeebs' is green.
* The Moorwen from ''Film/{{Outlander}}'' has bright green blood.
* The {{Kaiju}} from ''Film/PacificRim'' bleed blue when stabbed, slashed, gouged, plasma blasted, or otherwise maimed. Which happens a lot. Too bad the blood's [[BloodyMurder toxic as all hell]], though.
* The Tall Man in ''Film/{{Phantasm}}'' gets his hand caught in a door at one point, and the boy cuts off his fingers with a blade. They bleed yellow; the director noted on the commentary that most test audiences were shocked at the unusual color.
* The flying monsters from ''Film/PitchBlack'' have bluish-gray blood.
* The ''Franchise/{{Predator}}s'' from the films of the same name have fluorescent yellow/green blood that glows in the dark. As Schwarzenegger famously says in the first film:
-->'''Dutch:''' If it bleeds, we can kill it.
* ''{{Film/Skyline}}'': The aliens bleed dark purple blood.
* One of the princes in ''Film/{{Stardust}}'' has literal BlueBlood. Unknown if it's just because he's royalty, or if all inhabitants of the magical world have such blood, since nobody else in the movie is seen bleeding. WordOfGod states the decision for the color was made to avoid an "R" rating, with the added benefit of being a [[VisualPun visual gag]] for [[BlueBlood the character]].
* In ''Film/StarTrekVITheUndiscoveredCountry'', Klingon blood is shown to be Pepto-Bismol pink. Likely done to avoid an R-rating as it ends up being splattered all along the walls of the ship. Also in the movie, there's an inversion where an apparent Klingon's regular red blood leads to the revelation that it's actually a human in a {{Rubber Forehead|Aliens}} disguise. In the original theatrical edit of the movie, the unmasking scene was cut, [[SeriesContinuityError making the scene seem like a bizarre oversight]].
* In Creator/JohnCarpenter's ''Film/TheThing1982'', blood samples are taken from all the characters and exposed to heat to test which one is the shapeshifting alien. The alien blood, it turns out, is capable of ''leaping around the room as an independent organism''. The character who proposed and carried out the test did it because he figured that the blood might well do that, as severed pieces had previously been observed operating independently.
* Most of the Graboid blood seen in the ''Film/{{Tremors}}'' films is an orangish-red color, just different enough from the maroon-red of human blood to avert an R rating.
* In ''Film/TheWatch2012'', the aliens' blood is a green goo which (according to Bob) has the feel and texture of human cum.
* In the film adaptation of ''Literature/TheWitches1990'', most of the witches' blood is green when they are killed as mice, although some red blood is seen on the knives and cleavers the hotel staff use to kill them.
* In ''Film/TheWorldsEnd'', the alien robot replacements for the townspeople all have blue "blood".
* ''Film/Deadpool2'': If you doubted [[Characters/XMenFilmSeriesXForce Shatterstar]] is telling the truth when he says he is an alien, we get confirmation once he unfortunately skydives into the blades of a helicopter, resulting in green blood splattering everywhere.
* ''{{Film/Xtro}}'': Sam's quadruped alien form appears to have orange and thick, almost gelatinous blood, most evident when he is accidentally hit by the couple's car, and the driver examines his wound. His second alien form has black blood.
* In ''Film/YamatoTakeru'', the [[{{Orochi}} Yamata no Orochi]] has lime-green blood.

[[folder:Literature]]
* In ''Literature/{{Animorphs}}'', Andalite blood is blue-black. Elfangor and Arbron are [[{{Squick}} squicked out]] when they find that humans have red blood. Hork Bajir have black blood, Taxxons have a sickly yellow.
* ''And The Devil Will Drag You Under'' by L. Sprague deCamp had a race of alien demons with blue blood. "Not dark blue, but a nice, pretty sky blue."
* [[spoiler:''Sympaths'']] bleed blue in J.R. Ward's ''Literature/BlackDaggerBrotherhood'' series.
* In Creator/RobertEHoward's "Literature/RoguesInTheHouse", Franchise/ConanTheBarbarian professes to believe that Nabonidus has black blood when offering to cut his throat and see what color it is.
* ''Literature/TheCityOfBrass'': Full-blooded [[OurGeniesAreDifferent daeva]] have distinctive black blood. In one infamous [[HalfBreedDiscrimination pogrom against human-daeva hybrids]], an entire town's population was [[ATasteOfTheLash scourged]] to root out everyone who bled red.
* ''Literature/{{Discworld}}''
** Discworld elves have green blood too -- just like some other famous fictional beings with pointy ears. The explanation is that they have copper based blood, since elves are [[ColdIron allergic to iron.]]
** Trolls have ... ooze. We're not told what colour it is, but given that they're SiliconBasedLife, grey-to-brown seems likely.
* ''Franchise/DoctorWhoExpandedUniverse'': The Venusians in the novel ''Venusian Lullaby'' have blue blood.
* The K'da of ''Literature/{{Dragonback}}'' have black blood, which shows through their scales when they go into battle mode, making them look even more intimidating.
* The dragons from Creator/AnneMcCaffrey's ''Literature/DragonridersOfPern'' series have green, copper-based blood.
* White Court vampires from ''Literature/TheDresdenFiles'' have blood that is slightly, yet noticeably paler than that of normal humans. In fact, this trope is so common among the Dresdenverse's [[FantasyKitchenSink many, many kinds of monsters]] that by the later books, "Bleed for me" has become the standard test for a mortal trying to decide [[MustBeInvited whether to invite a stranger]] into their home.
* Averted in ''Literature/TheForeverWar''. "All God's creatures got hemoglobin."
* ''Literature/FortunesOfWar'': ''Dreadnought!'' features two instances.
** A pointed reference to Vulcans having green blood is made when Piper describes Sarda blushing in shame ("going olive", as she describes it) at the commendation ceremony for his research.
** Piper learns the hard way that Merete and others of her species have lavender blood. She uses the stains on her uniform to galvanize her anger toward the book's villain, whose attacks on their ship led to Merete's injuries.
* [[SocietyOfImmortals Humanity]] in Creator/RobertReed's ''Literature/GreatShip'' universe have very dark red, almost black blood due to the huge amount of genetic engineering and extra bits of DNA and cells in their bloodstream. The Remoras, twisted by radiation and their own tailored viruses, often have odd blood -- one of the characters, Orleans, has very thick black blood.
* Elves in Creator/SimonRGreen's various urban fantasy novels have golden blood. So does Ishmael Jones, an alien in human guise.
* ''Franchise/HarryPotter'':
** Unicorns in this universe have mercury-like silver blood, which is powerfully magical and will heal but {{curse}} you if you drink it.
** Dragon blood is either green or red, depending on the movie / source. Of course, there are different breeds...
* Creator/IsaacAsimov's "{{Literature/Hostess}}": The aliens from Hawkin's Planet are yellow-coloured, six-legged space cows. Their blood is clear, and Dr Asimov goes into detail, explaining how the lack of metal in their bloodstream makes it colourless.
* ''Literature/InCryptid'': Johrlac have clear blood that has natural healing properties when applied to human wounds.
* In ''Literature/InheritanceCycle'', Lethrblaka blood is bluish-green, like aged copper.
* In the ''Literature/JacobsLadderTrilogy'', the {{Transhuman}} Exalts have blue or purple blood due to the nanomachine colonies in their bodies. This is noted to affect their skin and eye color as well, particularly Tristen Conn, who's albino.
* The ktrit'zal in ''Literature/JunctionPoint'' have neon-orange blood that smells faintly of lilac, while the tianlong have sky-blue blood.
* Denizens of the House in ''Literature/KeysToTheKingdom'' have blue blood, and some of them, [[spoiler:including Arthur due to TheCorruption,]] have golden blood.
* The Orcs and Trolls in ''Literature/TheLordOfTheRings'' and its associated works have black blood.
* ''Literature/TheMachineriesOfEmpire'': [[spoiler:The clone of [[FourStarBadass Jedao]]]] gets a TomatoInTheMirror realization when he gets shot and suffers [[HealingFactor no worse effect]] than a trickle of thick black blood. His body turns out to be [[spoiler:a genetic engineered voidmoth, the same species that form the chassis for the Hexarchate's {{Living Ship}}s.]]
* Many dragons, in all forms of media, have boiling blood, including in ''[[Literature/TheBelgariad The Malloreon]]''.
* ''Literature/{{Mindwarp}}'': The protagonists all discover superpowers on their thirteenth birthday, and their blood turns silver, the first real sign that they're not 100% traditionally human.
* In Jay Aury's ''Monster Girl Tower'', elves bleed sap, just as a plant would.
* It took nineteen books [[spoiler: and a bad-luck-induced paper cut]] to find out that Aahz from ''Literature/MythAdventures'' has yellow-green blood.
* In the ''Literature/NemesisSaga'', most of the {{Kaiju}} bleed brown blood. Nemesis, on the other hand, bleeds red blood like a human.
* Mr. Croup and Mr. Vandemar from ''Literature/{{Neverwhere}}'' don't even bleed when wounded--just another sign of their inhuman nature.
* The main characters in Creator/RobertAHeinlein's ''Literature/TheNumberOfTheBeast'' discover the "ranger" hassling them isn't human when they discover that "he" has blue-green blood.
* CDF soldiers in ''Literature/OldMansWar'' have their blood replaced with [=SmartBlood=], a gray nanotech fluid that carries 4x the oxygen that human blood can and which can instantly seal wounds and even be commanded to ignite remotely in case something drinks your blood (or if you [[EyeScream spit some of it in an attacker's eyes]]).
* In ''Literature/ThePrideOfParahumans'', Parahuman blood is so thick with hemoglobin that it looks black. As does their muscle tissue.
* ''Literature/RedQueen'': Silvers have [[ExactlyWhatItSaysOnTheTin silver blood]], which gives them a certain superpower. However, superpowers are not restricted to silver-blooded people, as Reds like Mare can and do have them. [[spoiler:According to ''Broken Throne'', the silver blood is the result of nuclear radiation altering the genes of Silvers.]]
* The Sekoi of ''Literature/RelicMaster'' bleed amber, to further emphasize their alien nature.
* The demons in [[http://bbs.stardestroyer.net/viewtopic.php?t=118769&highlight= Armageddon:]] ''Literature/TheSalvationWar'' have yellow, green, and acid blood. [[spoiler: Not an instance of the RuleOfCool, however. They've been evolving in a ''very'' different environment for the past 5 million years. Quite possibly the colors have something to do with the environment…]] The angels in the sequel have silver or white blood. For both species, blood color was observed to function like blood groups in humans for purposes of transfusions.
* There are several examples in ''Franchise/TheShadowhunterChronicles''.
** Vampires still have red blood, but that red is much lighter than human blood.
** All demons have black blood. It is also often slightly toxic if someone accidentally drinks it or if it gets into an open wound.
** Angels basically have golden and shining blood.
** Emma Carstairs once killed a [[TheFairFolk fairy]] in battle who had green blood. However, it is not known whether all fairies have green blood or only a few have green blood.
* ''Literature/ASongOfIceAndFire'': Drogon, the largest of Daenerys Targaryen's dragons, bleeds black blood. Her other dragon Viserion bleeds reddish gold blood.
* S.L. Viehl's ''Literature/{{Stardoc}}'': Jorenians have green blood. [[BizarreAlienBiology And a few other odd anatomical traits]].
* ''Franchise/StarWarsLegends'':
** The [[ScaryDogmaticAliens Yuuzhan Vong]] of the ''Literature/NewJediOrder'' series have blood that is a shade of blue so dark it's almost black.
** Averted by the Chiss (Grand Admiral Thrawn's species), who, despite their periwinkle-blue skin and glowing red eyes, bleed ordinary red blood. This is because the Chiss are actually long-lost human colonists from the pre-hyperdrive era who mutated as a result of the chemicals in the atmosphere of their adopted home planet of Csilla.
* ''Literature/TheStormlightArchive'': The Parshendi have orange blood, and chasmfiends have purple blood, both of which are described as having a moldy smell. This similarity of the various lifeforms on Roshar hints that [[spoiler:Humans aren't actually native to the planet.]]
* In Creator/NeilGaiman's short story ''Literature/AStudyInEmerald'', an alternate-universe re-imagining of "A Study in Scarlet", the central crime scene is splashed with green blood, since in this universe all those of noble blood are [[HalfHumanHybrid descended from Lovecraftian Elder Gods]].
* ''Literature/{{Temeraire}}'': Dragon blood is a red so dark it's almost black, which makes it quite easy to tell after a battle whether an Aerial Corps DragonRider is injured or it's NotHisBlood.
* In Creator/WenSpencer's ''Literature/UkiahOregon'' series, Ontongard/Pack blood will coalesce into mice, insects, or other small animals and flee. The original owner, or another member of the same species, can later reabsorb the animal, [[TransferableMemory gaining memories]] stored therein.
* The Martians from ''Literature/TheWarOfTheWorlds'' are a strange case in that they ''have no blood''. And no digestive system. They obtain oxygen and nutrients by removing blood from other species and injecting into their own bodies.
* The [[AnIcePerson IceWing]] dragons in ''Literature/WingsOfFire'' bleed blue blood unlike the other red-blooded dragons.

[[folder:Live-Action TV]]
* In ''Series/The100'', "Nightblood" -- pitch-black blood, revealed to be genetically engineered to withstand high levels of radiation -- is used to identify potential leaders of the Grounders.
* An episode of ''{{Series/ALF}}'' ("Someone to Watch Over Me") has the following:
-->'''TV Reporter:''' ''This quiet suburban home ''[referring to the Tanners']'' is about to run red with blood.''\\
'''ALF:''' [gasps] ''Oh, wait, why am I worried? [[ComicallyMissingThePoint My blood is green]]''.
* ''Series/AlienNation'': Newcomers are revealed as having pinkish blood.
* Doyle, an android in ''Series/{{Andromeda}}'' "bleeds" superconductor fluid when cut. Due to her in-built WeirdnessCensor, ''she'' sees it as ordinary blood, thinking herself human.
* ''Series/BabylonFive:'' The Drazi have white blood. On the other hand, the other major races -- the Minbari, the Centauri, and the Narns -- have red blood.
* This happened a couple of times in ''Series/{{Brimstone}}'', where someone Stone suspected of being one of the 113, was revealed to be human because they bled.
* In the ''Series/BuffyTheVampireSlayer'' episode "[[Recap/BuffyTheVampireSlayerS3E18Earshot Earshot]]", a mouthless demon's fluorescent blood splashes onto Buffy's hand and gives her an "aspect of the demon", which turns out to be hearing people's thoughts. Similarly, in the ''Series/{{Angel}}'' episode "[[Recap/AngelS01E08IWillRememberYou I Will Remember You]]", the title character is "infected" with demonic blood that cures him of his vampirism. It's bright neon green.
* In the ''Series/{{CSI}}'' episode "The Theory of Everything", several [[VictimOfTheWeek victims]] with green blood turn up. [[spoiler:It's eventually revealed that this is the result of said victims having massive overdoses of a sulfur-containing medication against migraines in their bodies.]]
* ''Series/TheDarkCrystalAgeOfResistance'': When Mayrin, leader of all Gelfling Clans, is struck down by the Skeksis General, she bleeds pink blood.
* In ''Series/{{Defiance}}'', Castithans have pink blood, which looks like a strawberry milkshake, while Indogenes have clear blood.
* ''Series/DoctorWho'':
** In [[Recap/DoctorWhoS5E1TheTombOfTheCybermen "The Tomb of the Cybermen"]], Cyberman blood is white.
** The Daleks, as well as Davros himself, all have green blood. It can then be assumed that the rest of the Kaleds, before their mutation, also had green blood as well — although the Tenth Doctor remarks in dialogue that Kaled blood is the same as human blood but a little purpler.
** Time Lord blood has been subject to {{Retcon}}s:
*** In "[[Recap/DoctorWhoS18E4StateOfDecay State of Decay]]", the Doctor's blood is blue. In every other episode of the series where he (or other Time Lords) bleed, it's red. Reportedly, Fourth Doctor Creator/TomBaker insisted on his blood being blue in that story for reasons known only to himself.
*** The ExpandedUniverse goes with the idea that Time Lord blood is just a little bit brighter or oranger than human blood. It's sometimes described as basically red, but "orange-ish". (This was partially an attempt to explain away the slightly too bright fake blood used by the BBC's special effects department in the 70s.)
*** In [[Recap/DoctorWhoTVMTheTVMovie the movie]] it's red, but is different enough from human blood on a cellular level that Grace describes it as "not blood" when she looks at it under a microscope.
** Strangely, a scene from [[Recap/DoctorWhoS21E1WarriorsOfTheDeep "Warriors of the Deep"]], Episode 4, indicates that the Sea Devils have green blood. This is odd because this particular species is not alien, but rather a race of intelligent Earth reptiles. [[WildMassGuessing Perhaps their case is]] similar to [[RealityIsUnrealistic the real life green-blooded skink]] (''Prasinohaema virens'')?
** The Sontarans have green blood, as seen in [[Recap/DoctorWhoS22E4TheTwoDoctors "The Two Doctors"]].
** In [[Recap/DoctorWhoS30E3PlanetOfTheOod "Planet of the Ood"]], Ood blood is shown to be purple.
** Mr. Sweet from [[Recap/DoctorWhoS33E11TheCrimsonHorror "The Crimson Horror"]] has green blood.
* ''Series/FallingSkies'':
** Averted with the Skitters, they bleed red as any human (which we get to see on several occasions when [[YourHeadAsplode their heads blow up real good.]])
** The Espheni on the other hand have blue blood.
** The Volm bleed dark purple.
* In ''Series/{{Farscape}}'', Luxans have clear blood which turns to [[BlackBlood black]] when they get hurt. Black blood is toxic, thus the bleeding has to be [[PercussiveMaintenance stimulated]] until it turns clear again. Nebari have dark blue blood. Delvians, being [[PlantAliens humanoid, sapient plants]], bleed a sap-like substance.
* ''Series/TheGifted'':
** Marcos "bleeds" sunlight. It's later clarified that he has blood just like anyone else, but his powers charge his cells with energy that has to dissipate before it looks like normal blood.
** Glow has light-infused blood like Marcos, though not quite as powerful.
* In ''Series/{{Humans}}'', synths have a blue fluid that looks like blood flowing through them.
* Basco ta Jolokia of ''Series/KaizokuSentaiGokaiger'' is shown to have light bluish-green blood [[spoiler:when he dies]].
* ''Series/KamenRiderBlade'' has the [[MonsterOfTheWeek Undead]], who bleed green. This serves as a ChekhovsGun as [[spoiler: one of the main characters is an Undead himself and another main character becomes an Undead in the finale, and they both bled this color.]] The gun goes off ''cross-series'', as in ''Series/KamenRiderDecade'', [[spoiler: the BigBad of Ryuki's world turns out to be an Undead]]. This gets carried over in ''Series/KamenRiderZiO'', [[spoiler:where both aforementioned main characters get their Undead powers stolen, and their blood immediately turns red to signify that they've become human again.]]
* ''Series/TheOuterLimits1995'':
** In "[[Recap/TheOuterLimits1995S4E21PromisedLand Promised Land]]", the Tsal-Khan's blood is black.
** In "The Voyage Home", the alien's blood is green and slimy.
** In "The Grell", the titular race's blood can alter DNA, meaning that a human who is exposed to it will turn into a Grell.
** In "Manifest Destiny", the Trion have yellow-green blood. Given that it is rich in copper, it is highly conductive of electricity.
** In "A New Life", Father's species has bright green blood.
* ''Series/TheOutpost'': Talon's blood is as black as ink. It's why her people are known as "Blackbloods". [[spoiler: The Masters also have black blood. It turns out that Blackbloods descended from a HalfHumanHybrid fathered by one of them.]]
* ''Franchise/PowerRangers'': A reversal occurs when a villain's human nature is revealed when he does bleed human blood. There was also something of a straight example with Lipsyncher, who "bled" lipstick when her cheek was scarred by Jason's sword.
* The alien teenagers of ''Series/{{Roswell}}'' have both blood and saliva that looks normal to the naked eye, but not under a microscope.
* While {{Human Alien|s}} Clark Kent bleeds red blood on the few occasions he's hurt enough to bleed in ''Series/{{Smallville}}'', cyborg human Victor Stone (Comicbook/{{Cyborg}} of ''ComicBook/TeenTitans'' fame) bleeds black mech fluids, keeping in line with the comics. This does not carry over to the ''WesternAnimation/TeenTitans'' cartoon, where it appears to be clear.
* ''Series/StargateSG1'':
** An episode has the team realize something is amiss when an attempt to draw blood from [[spoiler:O'Neill]] yields silvery-white fluid instead.
** Goa'uld have blue blood.
** In another episode the first indication that a bounty hunter isn't human is that his blood is green.
* ''Franchise/StarTrek'':
** Vulcans have green copper-based blood, not unlike Earth insects.[[note]]In reality, Haemocyanin (the oxygen-carrying pigment that is the copper-blood equivalent of iron-based haemoglobin) does not carry oxygen very efficiently, which is why molluscs like squids and octopi tend to operate on a 'dart and rest' principle.[[/note]] To a limited extent, ''Franchise/StarTrek'' did ShownTheirWork in that Leonard Nimoy's make-up did tend towards a more greenish cast than everyone else's. It did take several tries, however, to get this to work the way they wanted when combined with the lighting and the other make-up, which occasionally had hilarious results--especially in early episodes of the show.
** While the pigment in Vulcan and Romulan blood may use copper similarly to how human blood uses iron, the pigment would not be all that much like hemoglobin. The usual color of copper-based respiratory pigments in Earth life (which are similar to hemoglobin) is blue.
** Parodied in [[https://www.offthemark.com/cartoon/science/biology/1996-08-04 a comic]] by Mark Parisi (''Off the Mark'', August 4th 1996), which shows a movie theater on planet Vulcan. The father reassures his son that what he sees on the screen is not real blood, just guacamole.
** In the movies, Klingons have pink blood. Ironically, ''Film/{{Star Trek VI|The Undiscovered Country}}'', which introduced the Klingon Pepto-Bismol Blood, shows a Klingon bleeding red blood in a climactic scene - at least in the theatrical version. Video releases restored a scene cut from the theatrical release explaining this (the "Klingon" is really a human wearing a {{rubber forehead|Aliens}}).
** The shapeshifters of ''Series/StarTrekDeepSpaceNine'' once caused some paranoia over their infiltration capabilities. As such, Starfleet briefly initiated required blood tests of officers and their family, as any of the shapeshifters' substance removed from their body would instantly revert to their protoplasm. Reassuring? Not quite, as Captain Sisko's father proceeds to point out that if he were a shapeshifter, he'd just kill some poor shlub and use ''their'' blood to get around the test. The fact the idea is introduced by someone who later proved to be a changeling infiltrator didn't help.
** The Andorians have blue blood, which is just icing on the cake since they also have blue skin and antennae. Bolians also have blue blood (and, again, blue skin).
** Cardassian blood is black. This also applies to other animal life native to Cardassia Prime, such as the raw fertilized taspar egg Picard ate in "Chain of Command".
* ''Series/{{Supernatural}}'': In "[[Recap/SupernaturalS13E10WaywardSisters Wayward Sister]]", the [[Characters/SupernaturalMonstersAndSupernaturalBeings Canids]] who originate from an AlternateUniverse have blue blood.
* In the TV series spin-off of ''Series/{{V|1983}}'' the distinctive reverberation of the Visitor's voices was dropped due to the expense of sound dubbing, and the Visitors were given cliché green blood instead. Some viewers missed the plot point about a human who'd cut his hand actually being a [[TheMole Visitor infiltrator]], as they lacked a colour television at the time.
* The alien human hybrids on ''Series/TheXFiles'' bled green blood that could produce a deadly gas (to non-aliens) when exposed to the atmosphere, as did the aliens themselves. This got {{lampshade|Hanging}}d in a heartbreakingly awesome way in "[[Recap/TheXFilesS06E19TheUnnatural The Unnatural]]". Ironically, this means that Mulder could see an alien-human hybrid bleeding, and not know there was anything weird going on because he's red/green colorblind!

[[folder:Mythology and Religion]]
* Wine is said to actually be the blood of Jesus Christ. [[Administrivia/RuleOfCautiousEditingJudgement Regardless of one's religious beliefs]], such unique biology would be understandable for a demigod. Generally this is not viewed literally though, and even then it's said wine becomes his blood via transubstatiation (invisibly).
* Gods and other divine beings in Greek Mythology don't bleed red blood but a golden glowing substance called Ichor.
[[/folder]]

[[folder:Tabletop Games]]
* The Nephilim of ''TabletopGame/{{Malifaux}}'' have black blood that burns any non-Nephilim that come in contact with it.
* ''TabletopGame/Warhammer40000'' has a number of different takes on this:
** In an aversion of the "HumanAliens have coloured blood and pink skin" error, the Tau do not look like humans partly ''because'' they have deep blue-purple blood (their equivalent of haemoglobin uses cobalt instead of iron), which has the expected effect on their skin tone. In one of the Literature/CiaphasCain novels, Amberley Vail notes that it smells horrible.
** The Orks, who are in fact [[PlantAliens genetically-engineered carnivorous space-fungi]], have green skin but red blood (and mouths). It wasn't always this way and earlier sourcebooks for the game described Ork blood as green, but eventually red gore was decided on. This was explained in ''Magazine/WhiteDwarf'' magazine with an in-universe biologist's report: while Orks' dense green skin is a chlorophyll- and spore-producing layer, the rest of their body is relatively normal meat, and they have a normal (if supercharged) food-based metabolism to support it. On the same page, the game developers gave the real reason: green injuries on green-skinned aliens were hard to notice, and made the models look like "they've had an accident eating a gooseberry squishy". [[DependingOnTheWriter Some sources]] have indicated that the Orks' blood does double duty as their equivalent of a lymphatic system, and that the colour of the blood will as a result vary depending on their diet, ranging from bright crimson to almost black.
** The Eldar have red blood like humans, but it crystallizes instead of forming scabs.
** On the transhuman spectrum, Space Marines are sometimes mentioned in-universe to have ''extremely'' bright red blood, due to its efficiency in transporting oxygen. Some also have corrosive or otherwise dangerous blood as a further defense against attackers.
* ''TabletopGame/WarhammerFantasy'': Older editions allowed Chaos Champions and mutants to gain this -- as {{Lovecraftian Superpower}}s. Some of the types of blood they could have included molten metal, electrically-charged slime, and a symbiotic BlobMonster that reacts to anyone poking holes in its host's skin by sticking CombatTentacles out through the wounds to try and kill them. The most detailed list can be found in the ''Tome of Corruption'' for ''TabletopGame/WarhammerFantasyRoleplay'', which details ''twenty different kinds'' of blood replacement.
** Acid, electricity, fire, molten metal and poison, obviously, are all lethal to your assailant.
** There are several variants where "blood" equates to "living animals" -- centipedes, ants, beetles, leeches, maggots, worms, even ''mice and small birds''. In all cases, these attack the person who wounded you, usually causing minor damage and fighting penalties (birds just cause penalties and mice cause just damage).
** Excrement (you do ''not'' want details) makes you so disgusting that your enemies find it harder to fight you.
** Eyeballs give you a tactical advantage because you can still see through them.
** Glue can temporarily stick an enemy against you.
** Mucous, mud and wax are disgusting, but harmless.
** Protoplasm means that if you die, a BlobMonster will emerge and attack your killers.
** Tar will spurt out and make your enemy all sticky, impairing their mobility.
** Vines will rip into enemy flesh, harming them and impairing movement.
** Vomit is not only disgusting, but induces mutations.
** Wind is deafening and eerie.
* In the ''TabletopGame/DungeonsAndDragons'' setting ''Oriental Adventures'', one way to identify octopus hengeyokai (shapeshifters) is that, even in human form, they have blue blood.
[[/folder]]

[[folder:Theme Parks]]
* ''Ride/GodzillaVsEvangelionTheReal4D'' at [[Ride/UniversalStudios Universal Studios Japan]] depicts [[spoiler:its version of King Ghidorah]] with glowing blue energy for blood.
[[/folder]]

[[folder:Video Games]]
* ''VideoGame/AlienBreed'': In the second generation games, the Breed are revealed to have green blood.
* ''VideoGame/BendyAndTheInkMachine'' is full of life forms who are made out of black ink. Whenever they bleed, they bleed, well... black ink.
* ''VideoGame/TheBindingOfIsaac: Rebirth'':
** DLC bosses Rag Man and Rag Mega both bleed violet. No explanation is given, but it is the same color associated with psychic abilities in the game, and both bosses have at least one trait involving that color. (Homing shots and giant orbs/beams of light, respectively.)
** Ghost enemies splatter in white ectoplasm when killed, instead of the regular blood that everything else turns in to upon death.
** While Wrath has red blood, [[EliteMooks Super Wrath]] inexplicably bleeds grey. It's possible that his blood is meant to be filled with ash given his [[MadBomber attack method]].
** Inverted by spiders; they have red blood, but spider blood in real life is pale blue.
* ''VideoGame/{{Bloodborne}}'': Some creatures bleed grey or green. The Plain Doll bleeds white. [[spoiler:And that's not counting the blood of an EldritchAbomination that underpins the plot.]]
* In ''VideoGame/BloodOmenLegacyOfKain'' you play a vampire whose health bar is a blood bar, so NPC blood is ColourCodedForYourConvenience: Red blood restores your health, the blue blood of ghosts restores your mana, black blood lowers your health, and green blood poisons you.
* ''VideoGame/CombatInstinct'': While the Gnork has [[AvertedTrope red blood]], the Hrumians have purple blood.
* Discussed in ''VideoGame/CthulhuSavesTheWorld'': Umi asks the blood types of her allies, and Cthulhu answers he's got ink for blood. Similarly, Paws, an alien resembling a cat, says he's got uranium for blood while Ember the demon dragon says to have acid for blood.
* Androids in ''VideoGame/DetroitBecomeHuman'' are powered by a fluid called Thirium, colloquially dubbed "blue blood" since that's essentially what it is.
* From the ''VideoGame/DevilMayCry'' series: ''VideoGame/DevilMayCry3DantesAwakening'' actually has creatures "bleed" appropriate to what they are -- sand, ichor, impact sparks, whatever. In ''VideoGame/DevilMayCry4'', only half-humans bleed red, while organic demons have blue, green, or orange blood instead.
* In ''VideoGame/DiabloIII'' when the angel Imperius is wounded in a cutscene his blood is white and glows, in keeping with angels being creatures of light rather than flesh and blood.
* ''VideoGame/DivinityOriginalSinII'': The Voidwoken, the game's primary villains, have {{curse}}d blood that appears dark and swimming with leeches when spilled. It also inflicts a ReviveKillsZombie effect on contact.
* The Cacodemons and Barons of Hell in ''VideoGame/{{Doom}}'' appear to leak blue and green fluids when they die, even though their blood spatter when hit while alive uses the same red color as seen for other creatures in the game. WordOfGod says this is because both ''do'' have red blood, but their ''innards'' are blue/green. However it has been suggested that they simply didn't have a way to color-shift the red blood splatter sprites and did not want to waste space on differently-colored graphics. Some modern source ports have remedied this by allowing the blood color to be shifted for different enemies. ''VideoGame/DoomEternal'' depicts both Cacodemons and Arachnotrons with blue blood.
* ''Franchise/DragonAge'':
** ZigZaggingTrope in ''VideoGame/DragonAgeOrigins''. Several people, including people who have firsthand experience against them, refer to darkspawn blood as being "black as sin"; however, ''all'' blood in the game is animated as a bright red. At one point, the PC can explain that while the idea of the blood being black is a common misconception, it has various inhuman properties: most notably and well known is how toxic it is, with exposure into an open wound being almost universally fatal to anyone but a Grey Warden, and likely related to this is the less obvious fact that it ''burns'' the skin on contact.
** In the ''VideoGame/DragonAgeInquisition'' DLC "The Descent", it emerges that [[spoiler: lyrium itself]] is the distinctly alien, multi-purpose "blood" of [[spoiler: massive subterranean creatures called Titans. Amusingly, magic involving *normal* blood is shunned and reviled by most of society. One wonders what the reaction will be to this news spreading.]]
* Like all things ''VideoGame/DwarfFortress'', there are different colors of blood based on the creature that bled it. Which, like all things ''VideoGame/DwarfFortress'', can be modded to taste. Someone even made a ''Homestuck'' (below) troll mod covering the entire hemospectrum. In the base game, troll blood is a bright cyan, some sea creatures bleed dark blue (based on their real life counterparts), fire imps have gray goo in the place of blood, and invertebrates have white "ichor."
* The Ghost People of the Sierra Madre in ''VideoGame/FalloutNewVegas'' bleed green, but this may not be blood since their insides apparently have a slushy like consistency, so what leaks out of them is the liquid part of the slushy.
* Cyborgs of all varieties in ''VideoGame/FarCry3BloodDragon'', including the player character Rex "Power" Colt, all have blue blood. Poked fun at in a late-game cutscene where the BigBad [[NotSoDifferentRemark tries to tell him that they both have the same blue blood]], to which Rex replies that, no, ''his'' blood is [[PatrioticFervor red, white, AND blue]].
* As they did in Myth/ClassicalMythology, the gods of ''VideoGame/{{Hades}}'' bleed golden ichor instead of red blood. The exception to this is the protagonist, Zagreus, whose red, humanlike "weak blood" is occasionally brought up as a subject of derision.
* The aliens (and the cockroaches, which is TruthInTelevision, see below) in ''VideoGame/HalfLife'' bleed light yellow.
* In the ''Franchise/{{Halo}}'' universe, Elites and Jackals have purple blood, Hunters orange, Brutes and Prophets red, Grunts luminous blue, and Drones whitish green. The Flood are a different story: they don't bleed ''just'' green blood; Infection Forms will [[BodyHorror liquefy the internal organs of the host]], so in reality they're spilling out their entrails ''in liquid form''. Unless the "Grunt Birthday Party" skull is enabled, in which case headshots will cause the Grunts to [[SillinessSwitch bleed confetti and cheering]].
* ''VideoGame/HyperLightDrifter'': The PlayerCharacter's blood is a shimmering magenta fluid that evaporates quickly. Occasionally, [[IncurableCoughOfDeath fits of]] a mysterious illness cause them to [[BloodFromTheMouth cough it onto]] the ground.
* The ant-like enemies found in ''VideoGame/JetForceGemini'' bleed green blood when you shoot them; and a special [[SillinessSwitch "cheat code"]] makes them bleed ''rainbow colored'' blood.
* ''Franchise/TheLegendOfZelda'':
** In ''VideoGame/TheLegendOfZeldaOcarinaOfTime'', Ganondorf originally coughed up regular red blood upon being defeated, but later versions of the game had him coughing up green blood instead.
** In ''VideoGame/TheLegendOfZeldaTwilightPrincess'', Morpheel produces purplish blood when its eye is attacked. [[spoiler:Dark Beast Ganon also drips glowing white blood from his old abdominal wound.]]
** In ''VideoGame/TheLegendOfZeldaBreathOfTheWild'', the Blight Ganons spew geysers of reddish-purple liquid [[MadeOfEvil Malice]] when they are defeated.
* In the ''VideoGame/{{Marathon}}'' series, most Pfhor (fighters, troopers, enforcers and minor hunters), ticks, lookers and simulacra have fluorescent yellow blood, major hunters and Mothers of All Hunters bluish-gray, F'lickta mixed green and red, hulks blue, S'pht green, and wasps and tank-cyborgs purple.
* In ''VideoGame/MarySkelterNightmares'', Marchens bleed glowing pink blood. Just to show that this isn't censorship: Jack, a human, bleeds the usual red blood.
* In ''Franchise/MassEffect'', a common taunt directed at humans who express conciliatory philosophy toward the varied races of the galaxy is "Do you remember what color your blood is?" Just for fun, stand up to the leader of the isolationist "Earth First (we can exploit the other planets later)" Terra-Firma party.
** Strangely, several non-council races have the same red coloured blood as humans, namely batarians, vorcha, and quarians. Others colours include blue Turian blood, orange Krogan blood, green Salarian blood, blue-purple Asari blood, light green Rachni blood, and yellow Collector blood. A Keeper shot by Saren can be seen bleeding black fluid, which is quite possibly artificial, given that they have been heavily bio engineered. Geth are fully synthetic, but "bleed" white fluid when killed.
** Thorian creepers don't bleed per se, but they do generate splatters of brownish-green material when they die.
** Blood colors in ME also qualify for ShownTheirWork credit, as species with alternate colors of blood have skin and/or mucous membrane coloration to match (asari, who bleed purple, have various tones of blue or purple skin as well as lightly blue-tinged sclerae; krogan, who bleed orange, can exhibit red or yellow eyes; Garrus and several other light-colored turians have a faint purplish cast to their facial features).
** The krogan have another odd variant on blood, as well. They don't actually have a nervous system made up of nerve cells; rather, they have a ''second'' circulatory system consisting of an electrically conducive fluid that runs through their body. As a result, krogan cannot be paralyzed. This physical trait was evolved by just about every species on Tuchanka, the krogan's [[DeathWorld homeworld.]]
** Shown in practice in ''VideoGame/MassEffect2'', when [[spoiler:Garrus]] gets shot during his recruit mission, and bleeds blue all over the floor, and is later seen with purple scar-tissue over third of his face, mostly covered with cybernetics.
* ''VideoGame/MetalGear'':
** In ''VideoGame/{{Metal Gear Solid 4|GunsOfThePatriots}}'', SuperSoldier Raiden has white nanomachine-based blood, the potential symbolism of which is not lost to [[DepravedBisexual Vamp]].
** In ''VideoGame/MetalGearRisingRevengeance'', cyborgs use a more advanced artificial blood that is red (except in the Japanese version, where it is still white due to censorship) that does not require the frequent dialysis that the original white blood did.
* ''VideoGame/MonsterHunter'' has the Neopterons. They're not aliens, but rather oversized insect-like monsters (the smallest is at least as big as the hunter's torso). Just like a real world insect, their blood is green, especially noticeable with Neopteron Large Monsters. ''4'' introduces the Gore Magala, an enigmatic new monster with purple blood, that is the source of a deadly virus that spreads to humans and monsters. While there is no physical change for humans that are infected, infected monsters start spilling purple blood when hit with attacks as well. When a Neopteron gets frenzied, their blood is ALSO purple despite a healthy Neopteron having green blood initially, showing just how much the virus can corrupt a monster's physiology.
* In the ''Franchise/MortalKombat'' games, Reptile, Khameleon and (until recently) Sheeva have green blood. Cyborgs have black oil instead of blood, Blaze has molten lava, D'Vorah has blue fluid, Noob Saibot has black... wraith juice and [[spoiler: Cyber Sub-Zero bleeds a light blue combination of oil and antifreeze]]. Some [[GuestFighter guest fighters]] also have different colored blood to match their original franchise: Franchise/{{Predator}} has bright green blood while [[Franchise/{{Alien}} the Xenomporph]] has yellowish-green blood (which, due to GameplayAndStorySegregation, is only acidic for certian moves). ComicBook/{{Spawn}} also has green blood and Franchise/{{Robocop}} has the same black blood as other androids.
* In ''VideoGame/MutantFootballLeague'', aliens bleed neon green when hit, and explode in a shower of acidic blood when killed. Nearby opponents will be either killed, benched due to low health, or softened up for a deathblow in the next few downs. This means that trying to cripple the all-alien Galaxy Chaos team by killing their stars will deplete your own defense significantly
* ''VideoGame/{{Nanobreaker}}'' had various robot/cyborg enemies, and a menu where you could decide what of wide range of colors of "blood" they would bleed as you viciously dispatch them with your shapeshifting sword. For great humor, select the "random" option, and turn your battlefield into a particularly colorful impressionistic painting!
* Clowns in ''VideoGame/PennyArcadeAdventures'' bleed rainbow colors.
* The Maians in ''VideoGame/PerfectDark'' have green blood. The Skedar, meanwhile, have red blood.
* ''Franchise/RatchetAndClank'': It's rare, but some enemies spew green slime when killed, such as the frog/toad enemies.
* ''Franchise/ResidentEvil'':
** ''VideoGame/ResidentEvil3Nemesis'' has the Nemesis monster bleed red when shot at, but when he gets knocked out after taking enough damage, his pool of blood is ''purple''.
** The ending of ''VideoGame/ResidentEvilGaiden'' zooms in to show [[spoiler:Leon]] bleeding green blood, implying he's actually the [[VoluntaryShapeshifting B.O.W. Parasite]] in disguise.
* ''VideoGame/TheRiftbreaker'' alien enemies have a variety of blood colors. This includes green, red, purple, blue or yellow blood. Some even bleed mud or magma.
* ''VideoGame/SagaFrontier''- Mystics have blue blood, Half-mystic protagonist Asellus has purple.
* If you go through ''{{VideoGame/Skullgirls}}'''s character profiles, you may see a few unusual blood types. Painwheel has SG (Skull Girl), Squigly has "Embalmed" (undead), and Big Band has B♭ (oil mixture, being a cyborg). Eliza has "Any".
* ''VideoGame/ShadowTheHedgehog'': The Black Arms have green blood. Also a case of BlackBlood, as it was going to be red before the developers had to change it to avoid a T rating.
* ''VideoGame/{{Splatoon}}'': The Inklings could be considered a somewhat non-standard version of this, as they're literally made of ink, which presumably fulfills the same functions that blood does, right down to splattering everywhere when they're killed.
* A major plot point in ''VideoGame/StarOcean1'' is that Fellpool have copper-based blood - but everyone from that planet has properly pink skin (or tan, in the case of the Highlanders). The only outward difference from Terrans is their tails and sometimes fangs.
* ''VideoGame/{{Unreal}}'' series:
** The Mercenaries in the original ''VideoGame/{{Unreal|I}}'' have green blood. Averted with every other alien race, however, which all bleed the same red blood as the player character.
** The Necris of ''VideoGame/UnrealTournament'' bleed a black substance called "nanoblack" rather than regular red blood.
* Orcs from ''VideoGame/{{Warcraft}}'' (even though they are native to a planet called 'Draenor') have very dark blood, which is why many of the more or less racist humans call them ''blackbloods''. Similarly, the blue skinned draenei have blue blood. That, and their unguligrade appearance has caused a few fans to compare them to the above mentioned [[TabletopGame/Warhammer40000 Warhammer 40k Tau]] (although people are even ''more'' likely to compare draenei to [[VideoGame/StarCraft Protoss]]). Demon blood seem to be fluorescent green (which is pretty much the trademark colour of fel energy) that more than one NPC has compared to "liquid rot". Sufficiently powerful demons have [[LavaAddsAwesome lava instead of blood.]] Most undead, including the playable [[TokenEvilTeammate Forsaken]] have green embalming fluid instead of blood.
* In ''VideoGame/WorldOfWarcraft'', [[TouchedByVorlons void elves]] have purple blood.
* The aliens in ''VideoGame/XCOMEnemyUnknown'' bleed yellow, which you can often see when it [[CameraAbuse sprays on the screen]] during the [[AlienAutopsy autopsies]] or when it pools on the ground aftter they die. This carries over to ADVENT troops in ''VideoGame/XCOM2'', which is the first sign that [[spoiler:they're not entirely human]].
* {{Averted|Trope}} in ''VideoGame/YumeNikki'': when Madotsuki stabs a DreamLand [[OurMonstersAreWeird creature]], it doesn't matter what it is: be it a bird girl, a giant foot-Martian who cries green tears, a poop monster, a horrified face on the wall, they will always bleed red blood and let out a human-like scream.
[[/folder]]

[[folder:Visual Novels]]
* In ''VisualNovel/DraKoi'' dragons bleed gold. When in human form, this also includes normal human blood.
* Zigzagged in ''VisualNovel/MarcoAndTheGalaxyDragon''. While many aliens have purple blood and a few have green blood, some—like [[DemBones El Skeleton]] and [[HumanAliens Gargouille]]—have red blood.
* In ''VisualNovel/{{Policenauts}}'', the "Frozeners" have white artificial blood, called "first-generation" blood, which is said to be simpler than the "third-generation" blood used on Home (Earth). It's also said to transport oxygen more efficiently than regular blood, making blood loss less of a threat.
[[/folder]]

[[folder:Webcomics]]
* ''Webcomic/BloodyUrban'' has [[OurVampiresAreDifferent Vampires]] with black blood, and [[OurGhoulsAreCreepier Ghouls]] with luminous green blood.
* ''Webcomic/CharbyTheVampirate'': The Orrotta have violet [[http://www.charbythevampirate.com/comic/1039 blood]].
* ''Webcomic/CommanderKitty'' usually features BloodlessCarnage, but that didn't stop Nin Wah [[http://www.commanderkitty.com/2011/05/15/saved-by-the-bell/ from staining the walls blue with Zenith's Tagged goons.]]
* ''Webcomic/{{Consolers}}'': The companies bleed ''money'', also doubling as a VisualPun.
%%* ''Webcomic/{{Cordless}}'': Terronians' hair reflects their blood color.
* ''Webcomic/TheDreamlandChronicles'': Nicodemus has green blood.
* ''Webcomic/{{Earthsong}}'': Used frequently. The colors don't always precisely match (Zaebos, a traditionally red demon, has black blood), likely for the same reasons they don't always in humans, but they tend to be darker versions of skintone.
* ''Webcomic/EnemyQuest'': The Skut possess acidic blood. This was taken advantage of during [[AlienInvasion the war with the Visitors]], where the Skut would [[ActionBomb strap bombs to their backs and ambush human fireteams]]. Anyone who the blast didn't get was splashed with the stuff.
* ''Webcomic/GrrlPower'': Maxima. She's a super who might technically not be human any more, and bleeds blue. She still blushes red, though. The author mentions originally planing to have her blush green, but that just made her look ill.
* ''Webcomic/{{Heartcore}}'': Salamander demons such as Carval have navy-blue blood that is highly volatile and ideal for making bombs. Common wisdom dictates that it's a bad idea to make salamander demons bleed. [[spoiler:Carval's previous incarnation, Volaster, exemplified this when he bled enough to turn himself into an UnholyNuke.]]
* ''Webcomic/HoovesOfDeath'': Both PlayedForLaughs and PlayedForDrama, as the unicorn soldiers literally bleed rainbows when wounded. While inherently humorous, it doesn't undo the fact that they live amidst a grim ZombieApocalypse where being torn limb from limb is a real possibility.
* ''Webcomic/{{Homestuck}}'': The [[OurTrollsAreDifferent trolls]] have a complex caste system based on the color (thirteen known exist) of their blood. Each troll has a different blood color, spanning the entire color spectrum. The highest castes have literal [[RoyalBlood Royal (Purple) Blood]], while the lowest castes have brownish red blood. Trolls higher on the spectrum live longer lives and tend to possess greater physical strength, while rustblood colors tend to have greater psychic powers. Greenbloods (the middle colors) tend to be more emotionally stable. Additionally, Karkat, Kanaya, and Feferi, have rare and special blood-types.
** Karkat's blood is a mutation -- bright red [[SubvertedTrope like human]] and carapace blood. This puts him completely outside (and beneath) the entire hemospectrum and has only been possessed by one other troll in history, his ancestor The Sufferer. As a result, Karkat opts for "blood anonymity" by typing in grey instead of his blood color as all the other trolls do.
** Kanaya has jade blood, which also lets her enjoy Alternia's blistering sunlight and be awake during the day when the undead normally stir, making her Alternia's {{Goth}} equivalent. It also marks her as one of the trolls to tend to the mother grub.
** Feferi's blood is literally [[PurpleIsPowerful royal purple]], making her heiress to the throne, because it physically grants her protection from the BrownNote of her EldritchAbomination guardian even at its [[TheEndOfTheWorldAsWeKnowIt highest level]].
** Each troll's lusus (a monstrous surrogate parent) shares the same blood color as their adopted troll. In addition, all the Horrorterrors share the same royal purple color Feferi and her lusus do.
** Also, for some reason, troll robots and artificial limbs have blood. Equius uses this to give a rustblood he has a crush on a robot body with blue blood befitting his station. This makes her occasionally prone to violent outbursts, like Equius himself.
** His Honorable Tyranny, the figurehead monster "in charge" of the Alternian court system has black blood.
** Cherubs also qualify, with the color depending on which personality is dominant. Calliope has lime-colored blood (same name as an exterminated troll caste, but a different color), while her [[TwoBeingsOneBody "brother"]] Caliborn has the same red as humans do. In fact, Calliope implies that an entire species having exactly the same color blood is very unusual across Paradox Space... apparently humans are the oddballs in this story.
* ''Webcomic/KillSixBillionDemons'': In "King of Swords", there's a scene where Solomon David slaughters a horde of challengers of different species from around the multiverse. He uses SupernaturalMartialArts of a kind that easily tears his opponents apart. A couple of them are revealed to contain purple gore rather than red.
* ''WebComic/LeavingTheCradle'': The Sashli -- sapient squids -- have blue blood.
* ''Webcomic/OurLittleAdventure'': The Zebroian Outsider has very unique, multicolored, shifting blood, which he and others believe to be cool.
* ''Webcomic/{{Outsider}}'': Soia-Liron species, such as the Loroi and Barsam, have blue, copper-based blood.
* ''Webcomic/SluggyFreelance'': The alien that attacks [[RedShirt Dykowski]] has ''[[http://beta.sluggy.com/daily.php?date=971013 concentrated orange juice]]'' for blood. The bad part, according to the crewmember studying the creature, is that it's the ''homestyle kind''.
-->'''Captain:''' With pulpy bits? '''EEEWWWW!'''
* ''Webcomic/{{Snarlbear}}'': The Snarlbear that Daisy kills has brilliantly hued, color-shifting blood. Daisy has it herself, now.
* ''Webcomic/SupernormalStep'': Hall and Eva are [[CompleteImmortality complete immortals]] that [[BlackBlood bleed black]] when injured.
* ''Webcomic/TowerOfGod'': Ren's creatures are green-blooded. And orange. And red.
* ''Webcomic/UnknownLands'': Dark Elves' naturally red blood has been turned blue.
[[/folder]]

[[folder:Web Original]]
* When the leprechaun in ''WebVideo/TheAdventuresOfTheLeagueOfSTEAM''[='s=] webisode "Fool's Gold" is dispatched, he turns into a pile of green goo.
* ''WebVideo/TheHorriblySlowMurdererWithTheExtremelyInefficientWeapon'': The Ginosaji has black blood.
* In ''WebAnimation/MadnessCombat'':
** [[EliteMooks A.T.P. units]] secrete yellow blood, a sign that they have been genetically enhanced.
** The Madness Combat universe have two different hell and both seems associated with black blood, when Deimos is travelling in the normal hell, he bleed black goop, while Sanford's normal red wound become black shortly after being forced into the Auditor's hell.
* In ''LetsPlay/LetsDrownOut'' when Yahtzee explained that the plot of ''VideoGame/{{Aquanox}} 2'' revolves around horseshoe crabs, Gabriel waffled of the importance of them, specifically their blood. It is 'milky, kinda blue' and based around cobalt. It is used to test for blood borne pathogens because it reacted violently in any presence of infections.
* Squid Kid from ''Literature/MetroCityChronicles'' has black blood.
* Santa Christ from WebVideo/TheNostalgiaCritic loves pancakes, so it's fitting that he bleeds maple syrup.
* According to the WebOriginal/ProtectorsOfThePlotContinuum, "Mary Sue" characters bleed red or pink glittery blood, or in extreme cases, "only" glitter.
* In ''Literature/TheSalvationWar'', angelic blood is white or silver, while demonic one is not only often acidic but also either green or yellow.
* Due to RunningTheAsylum, it varies, but if Franchise/{{the Slender Man|Mythos}} bleeds at all, his blood is often black. [[InvincibleVillain Injuring him in the first place requires multiple miracles,]] though, so this doesn't come up much.
* In the ''WebAnimation/SockSeries'':
** Gaeous the god of dirt can produce a green plant parasitic fluid which serves as their tears and their blood.
** Uquorion the god of fluid have both purple blood when they gets bitten to death and gray blood when their corpse falls on the ground.
* Demons are said to always have black blood in ''Literature/VoidDomain''.
* ''Literature/WhateleyUniverse'':
** Carmilla, a student at the SuperHeroSchool Whateley Academy, is mostly-demon, even if she looks like a hot 'urban vampire' goth kid. She bleeds a blackish-purple ichor which is definitely not blood.
** Same school: Eldritch is a mystical Artificer who bleeds a roughly-blood colored stuff that's too high in metals to be anything a human could have in his/her veins.
[[/folder]]

[[folder:Western Animation]]
* Roger's blood from ''WesternAnimation/AmericanDad'' is purple. However, some episodes depict Roger’s blood as red like human blood for no explained reason.
* In the ''WesternAnimation/Animaniacs2020'' episode "Bride of Pinky", the zombie and the two monsters Brain bring to life bleed green blood, which is how they were able to get away with it.
* ''Franchise/Ben10'':
** ''WesternAnimation/Ben10AlienForce'': If [[Characters/Ben10SupportingCharacters Magister Labrid]]'s "that's not water" is to be taken at its direst, his species has neon blue blood that steams on contact with at least Earth's atmosphere.
** ''WesternAnimation/Ben10UltimateAlien'': Near the end of the episode ''Andreas' Fault'', [[https://vignette.wikia.nocookie.net/ben10/images/e/ee/AF_%28508%29.png/revision/latest?cb=20150901203457 an injured Andreas is depicted with dark grey blood]].
* ''WesternAnimation/DannyPhantom'': Apparently, ghosts (and half ghosts in their ghost forms) bleed glowing green Ectoplasm...
* In the ''WesternAnimation/FishPolice'' episode "The Codfather" when the titular character is murdered (or so we're led to believe) his blood is purple.
* Kif Kroker from ''WesternAnimation/{{Futurama}}'' bleeds viscous green blood. It's tangy!
* ''WesternAnimation/GravityFalls'':
** Both the zombies from "Scary-oke" and the shapeshifter from "Into the Bunker" bleed green blood, likely the only reason why the fairly graphic violence against them was allowed on the Disney Channel in the first place.
** In "The Last Mabelcorn", the titular unicorn is punched in the nose then starts bleeding rainbow-colored blood from her nose. Later after Mabel, Grenda, Candy, and Wendy fight the unicorns, they come back with their clothes stained with blood the same color.
* A scene near the end of ''WesternAnimation/InvaderZim'' episode "Lice" seems to show that Zim (and by extension, all Irkens) has green blood, as he's skinned and the tissue underneath is green. Of course, considering that Zim's ''skin'' is green, it makes sense. WordOfGod says that Irkens have see-through pink blood.
* An episode of ''WesternAnimation/MegasXLR'' featured a shapeshifting {{plant alien|s}}. Once Coop discovered its true nature, he formed one of the robot's limbs into a chainsaw and got to work. The scene of the chainsaw going into the creature while green goop flies out goes on for [[OverlyLongGag over thirty seconds]].
* ''WesternAnimation/SolarOpposites'': The Shlorpians blood is blue.
* ''WesternAnimation/TheSimpsons'': Parodied when Moe is trying to convince a group of kids that he's not a troll because he bleeds red. Then he nicks his finger, and a frustrated Moe sees green blood spurting from the wound.
* ''WesternAnimation/StarWarsTheCloneWars'': In [[Recap/StarWarsTheCloneWarsS2E3ChildrenOfTheForce "Children of the Force"]], Cad Bane gets caught after disguising himself as a clone trooper because he was injured and bled a little bit on the floor of the shuttle, and no one who was ''supposed'' to be on that ship had green blood.
* ''WesternAnimation/StevenUniverse'' plays with it: [[BloodlessCarnage Gems do not bleed]], but they do ''blush'' [[http://steven-universe.wikia.com/wiki/Thread:541419 strange colors]] — for Pearl it's teal, while for every other gem it's something close to their [[AmazingTechnicolorPopulation various skin colors]]. Making it even weirder is that as their bodies are HardLight, they probably don't even ''have'' blood.
* The Twins from ''WesternAnimation/{{Superjail}}'' have green luminescent blood, as shown in "Combaticus", while their father has a more saturated lime color. This could be ArtisticLicense or the colorists having forgotten the glowing detail. Other aliens shown in the series are also shown to bleed in green. On at least two brief occasions, the Twins have been depicted with red blood (after being crushed in "Combaticus", and with bleeding from their ears and noses in the ending of "Troubles with Triplets") which could either be a coloring error or another artistic choice.
* Most of the alien blood in ''WesternAnimation/SymBionicTitan'' is green.
* Agent Bishop from ''WesternAnimation/TeenageMutantNinjaTurtles2003'' seems to have this as a result of his alien-altered physiology; after he was impaled by a hook in one episode, one could briefly see a thick, silver-colored liquid seeping into his clothes.
* In the ''WesternAnimation/ThunderCats2011'' episode "Ramlak Rising", the GiantSquid[=/=]ManEatingPlant HybridMonster the Ramlak is shown to have a strange blue ichor dripping from the severed ends of tentacles that Lion-O slices off when it first surfaces from the [[SandIsWater Sand Sea]] and attacks. When Lion-O strikes a mortal blow, it's revealed that the monster's blood is, appropriately enough, ''water.''
* In ''WesternAnimation/TransformersPrime'', the life-force of Cybertronians is Energon and it varies from blue, to green, to a purple-pink, and it glows. But when the robots are injured it acts exactly like blood.
[[/folder]]

[[folder:Real Life]]
* Arthropods:
** While certainly not aliens, most insects bleed light yellow (as mentioned above), some green; crustaceans bleed blue.
** The most famous of these is the humble horseshoe crab, with blue copper-based blood. Scientists routinely extract blood from the crabs for all kinds of medical procedures & tests, then release the animals after they've regenerated their blood.
* Mollusks tend to have blue blood.
* Ditto spiders, whose hemocyanin gives them greenish blue blood.
* There is a species of pen shell called ''Pinna squamosa''. What makes it unique is that it is the only mollusc to use manganese to store oxygen, in a protein called pinnaglobin. As a result, it has brown blood.
* Inverted with deep-sea tube worms, which have red blood like ours despite being from a taxonomic line in which iron-based blood pigment isn't expected.
* The ''Prasinohaema'' genus of skinks, in contrast to every other healthy vertebrate, have green blood (as well as green muscles, bone, and everything else). This is caused by levels of biliverdin (bile pigment) in the blood that are so high they would kill any other vertebrate. The name, of course, means "green blood."
* Due to having little to no hemoglobin, [[http://earthsky.org/biodiversity/kristin-obrien-antarcticas-icefish-have-translucent-bodies-and-blood Antarctic icefish]] have translucent white blood.
* Underwater, red blood appears green below a certain depth (red blood cells separate from the plasma, turning it yellow, which then combines with the blue tint of the water).
* Eel blood, although it doesn't ''look'' "alien", is toxic to humans and other mammals. Beware eel sushi that looks too pink!
* In humans...
** Blood coughed up by accident victims with pierced lungs can be [[{{Squick}} foamy and pink]].
** Sulphur can turn a person's blood green.
** Carbon monoxide poisoning turns red blood an even brighter, unnatural-looking shade of red.
** A convention of anatomical illustration is that deoxygenated blood vessels are depicted in blue on drawings and models. This sometimes leads people to the false conclusion that deoxygenated blood is blue; in fact, it's a reference to how the ''outsides'' of systemic veins, which carry this type of blood, look blue when seen through the paler shades of human skin.
** While their actual blood doesn't look different, the bone marrow of a patient with advanced leukemia looks lighter in color than that of a healthy person, due to being overloaded with immature, non-functional white blood cells.
** Methemoglobinemia is a genetic disorder that causes heightened levels of methemoglobin, which has a lower affinity for oxygen than hemoglobin, making the blood blue or brown. The most famous cases of methemoglobinemia are the "Blue Fugates", a Kentucky family known for their blue complexion.
** Everyone has a small quantity of "blue blood cells" in their body thanks to the element gallium. Gallium can and will take the place of iron in the red blood cell, turning the hemoglobin blue.
* Artificial blood:
** The trope of {{artificial human}}s having white blood possibly comes from the early research into oxygen-carrying temporary blood replacements for emergency surgery. Some of these work using very different chemical processes to naturally occurring blood (of any colour) and look a lot like milk.
** Other scientists are getting in on the fun too, it seems. They have created a oxygen-binding molecule called coboglobin, which is based on cobalt. Like human blood, it changes colors based on if it's oxygenated or not. If it is, then it's clear; if not, it turns amber yellow.
** Perftoran/Perfukol/Fluozol-DA is blue. In the 1980s Soviet medics called it "blue blood". It's a water emulsion of fluororganic compound that can carry twice more oxygen than erythrocytes.
* Invertebrates in the phylum Priapulida (also called "Penis Worms") actually have purple blood thanks to the presence of an organic molecule called haemerythrin.
* Chickens of the Ayam Cemani breed, from Indonesia, have a type of extreme hypermelanism that makes every organ in their body - skin, feathers, legs, combs, meat, guts, bones, etc - pitch black. Their blood is the only ''non''-black thing about them, and it's a very dark red compared to other birds'.
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