Aliens & Mutants in Fiction: Every Famous Species Explained
A field guide to the beings themselves, not the films: the alien species and mutant strains of movies, TV, comics and games, each with its biology, home world, first appearance and threat level, and each traced back to the real UFO reports or real science it borrowed from.
How Science Fiction and UFO Lore Shaped Each Other: From Martians to the Greys
Flying saucers, Greys and abductions moved between the screen and the witness stand for a century. The timeline of who borrowed what, from Lowell and Wells to Communion and The X-Files.
8 min readGreys in Fiction: From the Communion Cover to The X-Files and Paul
The small grey alien with black almond eyes is the default extraterrestrial of film and TV. Where the face came from, the 1987 book cover that fixed it, and the shows and films that made it a stock character.
8 min readXenomorph: The Alien's Life Cycle, Biology and Design Explained
Egg, facehugger, chestburster, drone, queen: how the Alien of the 1979 film reproduces, what its acid blood and inner jaw are for, where H.R. Giger's design came from, and how it echoes real abduction lore.
8 min readYautja (Predator): Biology, Hunting Code and Home World Explained
The Predator has hunted humans on screen since 1987. What the Yautja are, how their cloak, mask and plasma caster work, the honor code that governs a hunt, and how the franchise borrowed the ancient astronaut theory.
7 min readThe Engineers of Prometheus: Who They Are and Why They Made Us
The Space Jockey of Alien became the Engineers of Prometheus: pale giants who seeded Earth and then decided to sterilize it. Their biology, the black liquid, LV-223, and the ancient astronaut theory the films adapted.
7 min readThe Martians of The War of the Worlds: Tripods, Heat Rays and Why They Died
H.G. Wells built the first alien invasion on real Mars science: Lowell's canals, a dying planet, and beings that were all brain. What the Martians looked like, how their machines worked, why bacteria killed them, and how each adaptation changed them.
8 min readThe Na'vi of Avatar: Biology, Pandora and the Science Behind Them
Three metres tall, blue, and wired into their moon: what the Na'vi of Avatar are, where Pandora is, how the queue and Eywa work, what real astronomy says about Alpha Centauri, and why the films borrow from Star People legends.
8 min readHeptapods: The Aliens of Arrival, Their Language and Non-Linear Time
The seven-limbed aliens of Arrival and Ted Chiang's Story of Your Life: their biology, the twelve shells, the circular written language Heptapod B, why learning it changes how you experience time, and how real SETI protocols compare.
8 min readThe Prawns of District 9: Biology, the Ship Over Johannesburg and the Allegory
The stranded aliens of District 9, their insect-like biology, the ship that stalled over Johannesburg in 1982, why "prawn" is a slur, the apartheid history the film retells, and the real mass sightings it echoes.
8 min readThe Visitors of V: Reptilians in Human Skin and Where the Idea Came From
The Visitors of the 1983 miniseries V arrived as friends and turned out to be lizards under synthetic skin. Their biology and Sirius origin, Kenneth Johnson's fascism allegory, the 2009 remake, and how the show fed the reptilian conspiracy theory.
8 min readPod People: How the Body Snatchers Work and Why They Keep Coming Back
Seed pods from space that grow a copy of you while you sleep: how Jack Finney's Body Snatchers replace people, what the 1956, 1978, 1993 and 2007 films each feared, and how the story echoes real "they came back different" claims.
8 min readThe Thing: What the Alien Is, How It Assimilates and Where It Came From
The shape-shifting alien of John Carpenter's The Thing and John W. Campbell's "Who Goes There?": how it imitates its victims cell by cell, the saucer in the Antarctic ice, the blood test, and the real crash-retrieval and Antarctic UFO myths it draws on.
8 min readE.T.'s Species: What Is E.T., Where Is He From and Why He Phones Home
E.T. began as a horror film about the 1955 Kelly-Hopkinsville case. What Spielberg's alien is, the biology behind the glowing heart and healing finger, the Green Planet of the novels, and how a friendly alien changed what the Greys meant.
8 min readVogons: The Hitchhiker's Guide's Bureaucrats Who Demolished Earth
The Vogons of The Hitchhiker's Guide to the Galaxy demolished Earth for a hyperspace bypass and read poetry as torture. Where they evolved, how Vogsphere made them, what Douglas Adams was satirizing, and what real physics says about hyperspace.
8 min readWookiees: Kashyyyk, Biology and Why Chewbacca Never Got a Medal
Wookiees are the tall, long-lived, tree-dwelling species of Kashyyyk in Star Wars. Their biology and lifespan, the life debt, how Chewbacca's voice was made, the medal he finally received in 2019, and the hairy-humanoid reports of real ufology.
8 min readThe Hutts: Biology, Lifespan and the Crime Empire Explained
Jabba the Hutt is the best-known member of a slug-like species that lives for centuries and runs organized crime across the Star Wars galaxy. Hutt biology, Nal Hutta and Varl, the cartel, and the reptilian-overlord trope the Hutts embody.
7 min readYoda's Species: What Is Yoda, Where Is He From, and Why Is It Secret?
Yoda, Yaddle and Grogu belong to a species Star Wars has never named. What the films establish about it, how the puppet was built, why George Lucas keeps the origin a mystery, and the small beings of real UFO lore.
8 min readVulcans: Logic, Biology and the First Contact of 2063 Explained
The Vulcans of Star Trek: the real star their planet orbits, Surak and the turn to logic, green blood, pon farr and the mind meld, the first contact of April 5, 2063, and the tall, wise Nordic aliens of contactee lore they resemble.
8 min readKlingons: Biology, Honor Code and Home World Explained
The Klingons of Star Trek: Qo'noS and the Empire, why their foreheads changed between series, the honor code and the constructed language, and how their cloaking devices and warp drives compare with real UFO propulsion claims.
8 min readThe Borg: How Assimilation, the Hive Mind and the Collective Work
The Borg of Star Trek: where the Collective came from, how nanoprobes and implants assimilate a person, the Queen and the cube, Species 8472, and how the Borg mirror real implant claims and answer the Fermi paradox.
8 min readKryptonians: Why Superman Has Powers on Earth and What Destroyed Krypton
Kryptonians are the human-looking species of Superman, Supergirl and General Zod. What destroyed Krypton, why a yellow sun gives them powers, the Phantom Zone, and how they descend from the Nordic aliens and crashed ships of UFO lore.
8 min readKree and Skrulls: The Kree-Skrull War, Shapeshifting and Secret Invasion Explained
Marvel's two great alien empires: the militarist Kree of Hala and the shapeshifting Skrulls. Their origins in 1960s comics, the Kree-Skrull War, Secret Invasion, the Captain Marvel reversal, and the real "shapeshifters among us" theory the Skrulls anticipated.
7 min readAsgardians in Marvel: Are Thor and Loki Aliens or Gods?
Marvel rewrote the Norse gods as a long-lived species from another realm. Asgard in the comics and the films, Asgardian biology and the Bifrost, Ragnarok and New Asgard, and the ancient astronaut theory the whole idea comes from.
8 min readCybertronians: Are Transformers Aliens? Origins, Biology and the Allspark
Transformers are aliens: Cybertronians, a species of living machines from the planet Cybertron. The competing origin stories, sparks and Energon, why Autobots and Decepticons came to Earth, and how the films borrowed the Roswell crash-retrieval story.
8 min readDaleks: What Is Inside a Dalek, Skaro and the Time War Explained
The Daleks of Doctor Who: what the mutant inside the casing is, how Davros made them on Skaro, why Terry Nation and Raymond Cusick built them as Nazis in a machine, the Time War, and the Fermi paradox's exterminators.
8 min readTime Lords: Regeneration, Gallifrey and Two Hearts Explained
The Doctor's species in Doctor Who: Gallifrey and the Time Lords, regeneration and the thirteen-lives rule, two hearts, the TARDIS, the Time War and the Timeless Child, and how UNIT mirrors the real Project Blue Book.
8 min readThe Zerg: StarCraft's Swarm, Hive Mind and Infestation Explained
The Zerg of StarCraft: their origin on Zerus and the Xel'Naga who shaped them, the Overmind and the Swarm's biology, Kerrigan's infestation, and how the hive mind echoes the insectoid beings of real abduction reports.
7 min readThe Reapers of Mass Effect: Origins, the Cycle and the Fermi Paradox
The Reapers of Mass Effect: what the machine gods are, the 50,000-year harvest and the Citadel trap, the Leviathans and the Catalyst that made them, and why the trilogy is the most complete Fermi paradox story in games.
8 min readALF: Melmac, Gordon Shumway and the Alien Who Ate Cats in the Suburbs
ALF crashed into a suburban garage in 1986 and stayed four seasons. Who Gordon Shumway of Melmac is, why his planet blew up, how the puppet worked, and the crash-retrieval lore the show was joking about.
7 min readRoger from American Dad!: The Area 51 Alien in the Attic and His Personas
Roger is the pot-bellied Grey who lives in the Smith family's attic on American Dad!, rescued from Area 51, addicted to disguises and to being awful. His species, his backstory, the personas, and the Roswell and Area 51 lore he is built on.
7 min readKang and Kodos: The Simpsons' Rigellians, Every Treehouse of Horror and Citizen Kang
Kang and Kodos have menaced Springfield every Halloween since 1990. Who the drooling one-eyed Rigellians are, which is the sister, the cookbook gag they were born from, the 1996 election episode, and the invasion lore they parody.
7 min readMork from Ork: Orkans, the Egg Ship, Nanu Nanu and Why Boulder
Mork landed in Boulder, Colorado in an egg in 1978 and made Robin Williams a star. Who the Orkans are, how they age backwards and hatch from eggs, what Orson wanted, and the UFO-study history of the town Mork chose.
7 min readThe Coneheads: Remulak, Mass Quantities and Dan Aykroyd's Real UFO Beliefs
Beldar, Prymaat and Connie of Remulak have claimed to be from France since 1977. Where the Coneheads came from, the 1993 film, what a Remulakian eats, and the UFO convictions of the man who invented them.
7 min readStitch (Experiment 626): Biology, the Galactic Federation and Why He Cannot Swim
Stitch was built in a lab to destroy cities and ended up in Hawaii with a six-year-old. What Experiment 626 is, his powers and his one weakness, Jumba's other experiments, and the real genetic-engineering and Galactic Federation lore behind him.
7 min readMarvin the Martian: The Illudium Q-36 Explosive Space Modulator, K-9 and the Roman Helmet
Marvin the Martian has been trying to blow up Earth since 1948 because it blocks his view of Venus. Where Chuck Jones got the helmet, why he had no name for thirty years, the Instant Martians, and the Mars of 1948 he came from.
7 min readThe Great Gazoo: The Flintstones' Alien from Zetox, the Doomsday Button and the Dum-Dums
The Great Gazoo, a tiny green alien exiled from Zetox, joined The Flintstones in 1965 and is blamed for ending the show. Who he is, why only Fred and Barney can see him, and how a Stone Age alien anticipated the ancient astronaut theory.
6 min readThe Irkens of Invader Zim: The Almighty Tallest, PAKs, GIR and Operation Impending Doom
The Irken Empire conquers planets by height and sent its worst invader to Earth to be rid of him. Who the Irkens are, how a PAK keeps them alive, why GIR is made of trash, and the believer-nobody-believes trope that Dib inherited from real ufology.
7 min readLrrr and the Omicronians: Omicron Persei 8, the 1,000-Year TV Delay and Popplers
Lrrr, ruler of Omicron Persei 8, invaded Earth for the last episode of a sitcom that aired a thousand years earlier. Who Futurama's Omicronians are, the Poppler incident, Lrrr's marriage, and the real science of TV signals leaking into space.
7 min readDecapodians: Dr. Zoidberg's Species, Decapod 10, the Mating Frenzy and the Anchovies
Zoidberg is a Decapodian, a lobster-like alien from Decapod 10 who practises medicine on a species he does not understand. Their biology, the mating frenzy that kills the males, the anchovy extinction, and the crab-clawed beings of a real 1973 abduction.
7 min readThe Solomons of 3rd Rock from the Sun: The Home Planet, the Big Giant Head and the Mission
Four aliens in human bodies spent six seasons in Ohio studying us. Who Dick, Sally, Harry and Tommy Solomon really are, why Sally is a man, what the Big Giant Head wanted, and the human-looking visitors of the real reports they were spoofing.
7 min readUncle Martin of My Favorite Martian: Antennae, Telepathy and the First Sitcom Alien
Uncle Martin, the Martian stranded in Los Angeles in 1963, was television's first alien lodger and its first mind reader. His powers, his real name, the crash that stranded him, and the telepathic visitors of the contactee reports he was drawn from.
7 min readThe Martians of Mars Attacks!: The 1962 Topps Cards, Ack Ack and Death by Yodelling
The skull-faced, big-brained Martians of Mars Attacks! began as 55 gruesome trading cards in 1962 and became Tim Burton's 1996 invasion. Their biology, the translator that lied, the Slim Whitman record that killed them, and the Mars and the Cold War they came from.
7 min readKiller Klowns from Outer Space: The Klowns, the Big Top Ship and Cotton Candy Cocoons
The Klowns landed in Crescent Cove in 1988 in a ship shaped like a circus tent and harvested the town in cotton candy. What the Klowns are, how their weapons work, why the nose is the weak spot, and the real clown panics that surround the film.
6 min readThe Toy Story Aliens: The Little Green Men, The Claw and the Pizza Planet Cult
The three-eyed green aliens of Toy Story worship a claw machine and repay every debt. Where the Little Green Men came from, their religion, their rescue by Mr. Potato Head, their revenge at the dump, and the little green men of the 1950s headlines they are named for.
6 min readEwoks: Endor, the Miwok, Why They Tried to Cook Han Solo and Whether They Ate Stormtroopers
Ewoks won the Battle of Endor with logs and rocks. Where the name came from, the redwood forest that played their moon, the language Ben Burtt built from Kalmyk, the two TV films, and the little forest people of real folklore they resemble.
7 min readGungans and Jar Jar Binks: Otoh Gunga, the Battle of Naboo and the Most Argued-Over Alien in Film
The Gungans of Naboo live in bubble cities underwater and fought droids with energy balls in 1999. Their biology and technology, the Jar Jar backlash and what it did to Ahmed Best, the Darth Jar Jar theory, and the amphibious visitors of real ancient astronaut lore.
7 min readThe Aliens of Men in Black: Edgar the Bug, the Worms, Frank the Pug and the Arquillians
Men in Black turned the sinister agents of UFO legend into immigration officers for aliens. Edgar the Bug and his species, the Arquillian in the head, the worm guys, Frank the pug, the galaxy on Orion's belt, and the real Men in Black the film borrowed.
8 min readThe Monstars of Space Jam: The Nerdlucks, Moron Mountain and the Stolen NBA Talent
Five tiny aliens from an amusement park stole the talent of five NBA players and became the Monstars. Who the Nerdlucks are, how the theft worked, why Michael Jordan was recruited, what happened to the real players, and the zoo hypothesis Moron Mountain accidentally illustrates.
6 min readThe Yip Yips: Sesame Street's Martians, the Telephone and Jim Henson's Aliens
The Yip Yips have been landing on Sesame Street since 1971 to investigate telephones, clocks and cats. Who the Martians are, how Jim Henson built them, the book they consult, Gonzo's alien reveal, and the Mars of 1971 they arrived from.
6 min readThe Kanamits of To Serve Man: The Twilight Zone's Cookbook, the 1950 Story and the Gift That Was a Menu
The Kanamits ended famine and war on Earth and then opened a restaurant. The nine-foot aliens of The Twilight Zone's To Serve Man, Damon Knight's 1950 story, Richard Kiel's performance, the twist everyone knows, and the contactee gospel of peace it was parodying.
7 min readGroot: The Flora Colossus of Planet X, What "I Am Groot" Means and the 1960 Monster He Was
Groot began in 1960 as a tree monster who abducted humans and became the Guardians of the Galaxy's kindest member. His species, how his language works, how he regrows from a twig, the three ages of the film Groot, and the plant aliens of the 1950s he descends from.
7 min readGromflomites: The Galactic Federation of Rick and Morty, Krombopulos Michael and the Currency Crash
The Gromflomites are the insectoid soldiers and clerks of the Galactic Federation that occupied Earth in Rick and Morty. Their biology, the assassin Krombopulos Michael, the day Rick set their currency to zero, and the insectoid beings and Galactic Federation of the real lore.
7 min readThe Gems of Steven Universe: Homeworld, the Diamonds, Fusion and How a Gem Is Made
The Gems are an alien species of living gemstones who project their bodies from light and colonise planets by draining them. Homeworld and the Diamond Authority, the Kindergarten, fusion, the Crystal Gem rebellion, and the crystal beliefs and silicon life of the real lore.
8 min readTribbles: Born Pregnant, Hated by Klingons and the Furry Alien That Nearly Got Star Trek Sued
Tribbles purr, breed every twelve hours and shriek at Klingons. The 1967 episode, David Gerrold's debt to Heinlein's flat cats, the biology of a creature that is mostly reproduction, the tribble episodes since, and the real planetary-protection rules that exist because of things like them.
7 min readX-Men Mutants (Homo Superior): The X-Gene, Origins and Real Genetics
Marvel's mutants are Homo superior, humans born with an X-gene that gives them powers. Where the idea came from in 1963, the mutant-versus-mutate distinction, the Celestial retcon, and what real genetics says about mutation, superior species and hybrids.
8 min readIs Spider-Man a Mutant? Radioactive Origins of Marvel's Silver Age Heroes
A radioactive spider, cosmic rays, a gamma bomb: Marvel's heroes of 1961 to 1964 all got their powers from radiation. Why Spider-Man is a mutate not a mutant, the retcons from totems to genetic engineering, and what radiation really does, including the flashes astronauts see.
8 min readThe Hulk and Gamma Radiation: What Gamma Rays Actually Do to a Body
Bruce Banner became the Hulk in a gamma bomb test in the New Mexico desert in 1962. Hulk biology from grey to green, the real Trinity test and the 509th Composite Group behind the story, and what gamma radiation actually does to a human body.
8 min readNinja Turtles Mutagen: Where the Ooze Came From and How Mutation Works in TMNT
The green ooze that made the Teenage Mutant Ninja Turtles began as a Daredevil joke. Where the mutagen comes from in each version, from a truck to alien Utroms to a lab, how TMNT mutation works, Splinter's two origins, and what real mutagens do.
8 min readGodzilla and the Kaiju: Radiation Mutants of the Atomic Age Explained
Godzilla was born nine months after a hydrogen bomb test irradiated a Japanese fishing boat. What kaiju means, whether Godzilla is a mutant or a dinosaur, the 1954 film and the big-bug cycle, Minus One and the Monsterverse, and what radiation really does to animals.
8 min readFallout Super Mutants and Ghouls: FEV, Radiation and Real Science
Fallout's super mutants come from a virus, its ghouls from radiation, and neither would work. FEV and the Master at Mariposa, super mutant biology and the Institute strain, feral and non-feral ghouls, the real Nevada test site behind the wasteland, and what radiation actually does.
8 min readThe Mutants of S.T.A.L.K.E.R. and Metro: Chernobyl, the Zone and Roadside Picnic
The bloodsuckers, controllers and Dark Ones of S.T.A.L.K.E.R. and Metro descend from one novel: the Strugatskys' Roadside Picnic and its Zone. The games' mutants, the real Chernobyl exclusion zone and its wildlife, and the aliens who never noticed us.
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