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(v) bark(n) barnacle basset bat bay(n) bay(v) bay(a) beagle bear beast beast of burden beaver bellow(v) bellow(n) 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(a) canine(n) 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(a) feline(n) female(a) female(n) feral ferret fetlock fieldmouse filly fin fleece flipper flying fox foal(n) foal(v) 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(a) hind(n) 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(n) litter(v) lizard llama longhorn lugworm lynx male mamba mammal mammary mammoth mandible mandrill mane man-eater mare marmoset marsupial marten mastitis mate(n) mate(v) mating maw menagerie mew miaow mice migrant milk mimic(v) mimic(n) mink mole mollusc mongoose mongrel monkey moo moose moult mountain goat mountain lion mouse mule muskrat mussel mustang mutt muzzle nag nanny goat native(a) native(n) nest newt nocturnal ocelot octopus offspring oink okapi omnivore omnivorous opossum orangutang otter ox pachyderm pack pad pair panda panther parasite parasitic paw(n) paw(v) 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(v) spawn(n) sperm whale sponge spoor spore springbok squid squirrel stag stallion starfish St Bernard steed steer sting stinger stoat stomach stray(a) stray(n) stud sucker suckle suckling swine tadpole tail tame(a) tame(v) 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(n) whelp(v) whinny whippet whisker wild boar wildcat wildebeest wildfowl winkle withers wolf wolfhound wombat wool yak yap(v) yap(n) yearling yelp Yorkshire terrier young zebra zoologist zoology zygote