- aardvark
- adder
- Afghan
- alley cat
- alligator
- alpaca
- Alsatian
- amphibian
- amphibious
- angora
- animal
- anteater
- antelope
- anthropoid
- antler
- ape
- appaloosa
- arachnid
- armadillo
- asp
- ass
- baa
- baboon
- baby
- badger
- bantam
- bark
- bark
- barnacle
- basset
- bat
- bay
- bay
- bay
- beagle
- bear
- beast
- beast of burden
- beaver
- bellow
- bellow
- belly
- big cat
- big game
- bighorn sheep
- billy goat
- biped
- bison
- bitch
- bivalve
- bleat
- bloodhound
- bloodstream
- blow-hole
- boa
- boar
- bobcat
- bovine
- bow-wow
- boxer
- brainwave
- brindled
- bristle
- bronc
- bronco
- brontosaurus
- brush
- buck
- buffalo
- bull
- bulldog
- bullfrog
- bullock
- bull terrier
- burro
- burrow
- calf
- call
- calve
- camel
- canine
- canine
- carapace
- carcass
- caribou
- carnivore
- carthorse
- cat
- cattle
- caudal
- cayman
- cetacean
- chameleon
- chamois
- cheetah
- chestnut
- chickadee
- chicken
- chihuahua
- chimpanzee
- chinchilla
- chipmunk
- chow
- claw
- cloven hoof
- coat
- cob
- cobra
- cocker spaniel
- cold-blooded
- collie
- colouring
- colt
- comb
- connective tissue
- cony
- coon
- copperhead
- corgi
- cougar
- courtship
- cow
- coyote
- coypu
- crest
- crocodile
- crop
- crustacean
- cry
- cub
- cur
- dachshund
- Dalmatian
- deer
- den
- dentine
- dingo
- dinosaur
- doe
- dog
- dolphin
- domesticate
- donkey
- dormouse
- dorsal
- dromedary
- duckbilled platypus
- earthworm
- elephant
- elk
- entrails
- ermine
- ewe
- excreta
- excretion
- fallopian tube
- fallow deer
- fang
- fauna
- fawn
- feed
- feeler
- feline
- feline
- female
- female
- feral
- ferret
- fetlock
- fieldmouse
- filly
- fin
- fleece
- flipper
- flying fox
- foal
- foal
- foetus
- forefoot
- foreleg
- fox
- foxhound
- fox terrier
- Friesian
- frog
- frogspawn
- fruit bat
- fur
- furry
- garter snake
- gazelle
- gecko
- geese
- gelding
- gerbil
- German shepherd
- gestation
- giant panda
- gibbon
- giraffe
- gnu
- goat
- golden retriever
- gopher
- gorilla
- gregarious
- greyhound
- groundhog
- ground squirrel
- grunt
- guinea pig
- hack
- hackles
- hairless
- hamster
- hare
- hart
- haunch
- hedgehog
- heifer
- hen
- herbivore
- herd
- hermit crab
- hibernate
- hind
- hind
- hindquarters
- hippo
- hippopotamus
- hock
- hog
- hoof
- horned
- horse
- hound
- howl
- hump
- husky
- hybrid
- hyena
- ibex
- iguana
- impala
- inbred
- inbreeding
- insectivore
- interbreed
- invertebrate
- jackal
- jackrabbit
- jaguar
- jellyfish
- Jersey
- kangaroo
- kid
- koala
- kookaburra
- Labrador
- lair
- lamb
- lemming
- leopard
- lion
- lioness
- litter
- litter
- lizard
- llama
- longhorn
- lugworm
- lynx
- male
- mamba
- mammal
- mammary
- mammoth
- mandible
- mandrill
- mane
- man-eater
- mare
- marmoset
- marsupial
- marten
- mastitis
- mate
- mate
- mating
- maw
- menagerie
- mew
- miaow
- mice
- migrant
- milk
- mimic
- mimic
- mink
- mole
- mollusc
- mongoose
- mongrel
- monkey
- moo
- moose
- moult
- mountain goat
- mountain lion
- mouse
- mule
- muskrat
- mussel
- mustang
- mutt
- muzzle
- nag
- nanny goat
- native
- native
- nest
- newt
- nocturnal
- ocelot
- octopus
- offspring
- oink
- okapi
- omnivore
- omnivorous
- opossum
- orangutang
- otter
- ox
- pachyderm
- pack
- pad
- pair
- panda
- panther
- parasite
- parasitic
- paw
- paw
- peccary
- pedigree
- peke
- Pekinese
- pelt
- Persian cat
- pest
- pheasant
- piebald
- pied
- pig
- piggy
- piglet
- pincer
- pine marten
- pinto
- pit bull terrier
- pit pony
- plankton
- plate
- platypus
- pointer
- polar bear
- polecat
- polyp
- pony
- pooch
- poodle
- porcupine
- porker
- porpoise
- Portuguese man-of-war
- possum
- pouch
- prairie dog
- prance
- predation
- predator
- predatory
- prehensile
- prey
- prickle
- pride
- primate
- proboscis
- procreate
- prowl
- pterodactyl
- puffin
- pug
- pullet
- puma
- pup
- purebred
- purr
- pussy
- python
- quack
- quadruped
- quill
- rabbit
- rabbit warren
- rabid
- raccoon
- racoon
- ram
- rat
- rattler
- rattlesnake
- ravening
- reindeer
- reptile
- retract
- retriever
- rhesus monkey
- rhino
- rhinoceros
- roan
- rodent
- roe deer
- rottweiler
- ruminant
- ruminate
- rump
- runt
- rut
- sable
- sac
- salamander
- sausage dog
- scavenge
- school
- scorpion
- seal
- sea lion
- seashell
- sea urchin
- semen
- serpent
- setter
- sex
- shed
- sheep
- sheepdog
- Shetland pony
- shire horse
- shrew
- shrimp
- Siamese cat
- silkworm
- simian
- sire
- skin
- skunk
- sloth
- slug
- snail
- snake
- snakebite
- snarl
- sniffer dog
- snout
- social
- sow
- spaniel
- spawn
- spawn
- sperm whale
- sponge
- spoor
- spore
- springbok
- squid
- squirrel
- stag
- stallion
- starfish
- St Bernard
- steed
- steer
- sting
- stinger
- stoat
- stomach
- stray
- stray
- stud
- sucker
- suckle
- suckling
- swine
- tadpole
- tail
- tame
- tame
- tapeworm
- tapir
- teat
- tentacle
- terrapin
- terrier
- territorial
- territory
- tiger
- tigress
- toad
- tom
- tomcat
- tooth
- tortoise
- tortoiseshell
- trumpet
- trunk
- tufted
- turtle
- tusk
- tyrannosaurus
- udder
- uterus
- vampire bat
- vent
- vermin
- vertebrate
- vicuña
- viper
- vivarium
- vixen
- vole
- wag
- wallaby
- wallow
- walrus
- warm-blooded
- warren
- warthog
- water buffalo
- water rat
- water vole
- weasel
- weevil
- whale
- whelk
- whelp
- whelp
- whinny
- whippet
- whisker
- wild boar
- wildcat
- wildebeest
- wildfowl
- winkle
- withers
- wolf
- wolfhound
- wombat
- wool
- yak
- yap
- yap
- yearling
- yelp
- Yorkshire terrier
- young
- zebra
- zoologist
- zoology
- zygote
