Mammalian or mammalianoid species are those either belonging to or biologically resembling the animal group 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.
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Colonial (All Tomorrows) -
Pleiadian -
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Spacer (All Tomorrows) -
Terrestrial (All Tomorrows) -
Ruin Haunter
All items (895)
A
- Abednedo
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- Ackdarian
- Aggedor
- Aing-Tii
- Air Whale
- Akrennian
- Aldebaran Gopher
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- Alfa 177 canine
- Alfur
- Alien (Attack the Block)
- Alien (Parents from Space)
- Alien Bear (Savage Planet)
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- Alien Horse
- Alien Jackal
- Alien Pet Dragon
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- Allayi
- Alley Rat
- Alvarian
- Alvin's Species
- Amaran
- Ameglian Major Cow
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- Anatinus
- Andalite
- Andrewsarchus (FMM-UV 32)
- Angara
- Anooba
- Antican
- Anubian Baskurr
- Anunnaki
- Ape-Man
- Apokorat
- Appoplexian
- Evolved Appoplexian
- Aquathawn
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- Arachnachimp
- Evolved Arachnichimp
- Arachnid (Starship Troopers)
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- Ardennian
- Arfgardian
- Argit's Species
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- Arrat
- Arslycan
- Asari
- Asgardian
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- Asteromorph
- Atheleni
- Atlantean (DC)
- Atrocian
- Atrurk
- Atuuk
- Axturian
- Azure
- Azurian Cat
B
- B0V1NE-09
- Ba'Kar
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- Baboon Hawk
- Baliflid
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- Banfoo
- Banth
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- Barthos' Species
- Bashmouth's Species
- Bazwarz
- Beader
- Bear Cub
- Bearded Amprat
- Beastman
- Beerus' Species
- Belot
- Belzagor Native
- Berbil
- Biboo
- Bigtooth Furlon
- Bilusaludo
- Binipinardian
- Binog
- Biologically Engineered Garbage Gobblers
- Bishtar
- Black Hole Mole
- Blasé Tree Goat
- Blind Folk
- Blongo
- Bloop
- Blue-furred Feline
- Blutor
- Boar-wolf
- Bobog
- Boerboe
- Bolkin
- Bolovaxian
- Bone Crusher
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- Boomeroid
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- Boray
- Borse
- Bothan
- Boudacian
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- Brackaset
- Brak's species
- Brontoteriy (FMM-UV 32)
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- Brutebeast
- Bug Facer
- Builder (Man After Man)
- Bulgallian Sludge Rat
- Bulrathi
- Bunnicorn
- Burleck
- Burnt
C
- C18 Locker Alien
- Caamasi
- Cadmium
- Caitian
- Calcoan
- Canid
- Canidan
- Canillian
- Canoid
- Capridava
- Carinoid
- Carnivore (Shakespeare's Planet)
- Castithan
- Cat
- Cat (The Cat from Outer Space)
- Cat from Saturn
- Cat Person (Rick and Morty)
- Cathar
- Catkind
- Catnipian
- Cave-rat
- Centaur
- Centaurian (Marvel)
- Cerberus (Roswell Conspiracies)
- Chadra-Fan
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- Chevin
- Chikarri
- Chironian
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- Chowbak
- Chronian
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- Chrrt-chuk
- Cinnamon Creature
- Clanger
- Clefable
- Clypse Native
- Colonial (All Tomorrows)
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- Cornerian
- Cosmic
- Coverton's Species
- Cow Alien's Species
- Cralegun
- Creepicheep
- Crite
- Cryhock
- Cypabaran
- Czyrni
D
- Dar-Tongo
- Decka's Species
- Demrel Rat
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- Devaronian
- Devil's Species
- Devourer of the Abyss
- Diggum
- Dilbian
- Dimorusian
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- Diomedan
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- Doc's Species
- Dog (Good Boy!)
- Dog Poop's species
- Dokepal
- Doopidoo
- Doppelgänger (Doppelgänger)
- Dornian
- Dowutin
- Draenei
- Dragon
- Dragtaur
- Drakoulias