Mammalian or mammalianoid species are those either belonging to or biologically resembling the animal group classis mammalia. When dealing with alien species, the characters most commonly used to define mammalianoids include an internal skeleton and jaws resembling those of Earth vertebrates; homeothermy; and the habit of taking extensive care of, and nourishing, young offspring. Fur coating or hair and external ears are also commonly present in mammalian species.
All items (854)
S
- S'kytri
- Sail Person
- Saiyan
-
- Salky Hound
- Salt Vampire
- Salusian
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- Sando Aqua Monster
- Sasquatch (Roswell Conspiracies)
- Satellitus craterus orbitus
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- Satyriac
- Saurian Swinoid
- Schrodingarian
- SCP-860-2
- Scratazon
- Scyldari
- Sea Elf
- Seaborne
-
- Selkie (Masters of the Universe)
- Selonian
- Seni
- Sensoth
- Sethoru
- Seven Tailed Crup
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- Shadow Beast
- Shalagh
- Shan (Viagens Interplanetarias)
- Shaupaut
- Sheep (Kaeloo)
- Sheep (Wander Over Yonder)
- Sheep Person
- Shirt
- Shistavanen
-
- Shriek (Star Wars)
- Shul-shul
-
- Skaarf
- Skakoan
- Skandit
- Skaven
- Skib
- Skidmarx's Species
- Skliss
- Skull Bear
- Skypiean
- Slaughtering Rat People
- Slotto
- Smumpian
- Snake Person
- Snarf
- Snarler
- Snivvian
- Snovemdomas
- Snow Bear
- Snow Beast
- Snow Howler
- Snow-Elk
- SnowHorn
- Snozzilian
- Sogowan
-
- Sororian
- Sororian Ape
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- Sororian Deer
- Sororian Pachyderm
- Souliman Aktapan
-
- Space Rat
- Space Whale
- Spacer (All Tomorrows)
- Spelean
- Spiner
- Spinner's species
- Splixson
- Squall (Star Wars)
- Squanchy
- Square Hog
- Squit
- Star Bunny
- Star Nomad
- Star Person (All Tomorrows)
- Steef
- Steeljaw
- Stintaril
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- Strider (All Tomorrows)
- Strider (Minecraft)
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- Sumacrea
- Swamp Bat
- Swamp Hog
- Swimmer (All Tomorrows)
-
- Symbiote (All Tomorrows)
T
- Talpaedan
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- Tamaranean
- Tantor
- Tarantian
- Targhee Moonbeast
- Tarsunt
- Tauron
- Tavlek
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- Taygetian
- Teek
- Teekan
- Tellarite
- Temptor (All Tomorrows)
- Terrestrial (All Tomorrows)
- Terrillian
- Tessellated Arboreal Binjinphant
- Tetramand
- Tetrap
- Thakwaash
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-
- Thin Man
- Thunderian
- Tiger-Wolf
- Tigrokrys
- Time Beast
- Tintinna
- Titan (All Tomorrows)
- Titan (The Owl House)
- Tivolian
- Tobihane
- Tolian
- Tooke
- Tool Breeder
-
-
- Toydarian
- Trail Blazer
- Trebhum
- Trekalope
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- Tritonian Yeti
- Troll
- Trollog
- Trombipulor's Species
- Trululu
- Trumpy's species
- Tsal-Khan
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- Tuk
- Tulip's species
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- Twi'lek
- Tynnan
U
- Ugnari
- Ugnaught
- Uller
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- Umbrite
- Underling
- Unidentified Azurian feline
- Unidentified bigfoot-humanoid (Rick and Morty)
- Unidentified Canid (I Have No Bones Yet I Must Flee)
- Unidentified IO-X4 Species
- Unidentified mammal-like aliens (American Dad)
- Unidentified tapir-like species (Treasure Planet)
- Unknown creature from Thra
- Uranian (Life on Uranus)
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V