aardvark abalone Abyssinian cat Adamson, Joy adder admiral butterfly aepyornis affenpinscher Afghan hound Agassiz, Alexander (Emmanuel Rodolphe) aggressive behaviour agouti Airedale terrier Akita Alaskan malamute albacore albatross albinism alewife alligator
Allosaurus alpaca amberjack American Museum of Natural History American Saddlebred amphibian amphioxus anaconda anchovy angelfish anglerfish Angora goat Angus anhinga animal animal communication animal husbandry animal rights animals, cruelty to annelid
ant anteater antelope antenna anthrax antlion Apatosaurus ape aphid Appaloosa aquaculture aquarium Arabian horse arachnid archaeopteryx archer fish archosaur Arctic fox Arctic tern armadillo
arthropod asp ass assassin bug Atlantic salmon Audubon Society, National Audubon, John James auk aurochs aviary avocet avoidance behaviour Ayrshire baboon badger bagworm moth bald eagle baleen whale bandicoot Barbary macaque
barbet bark beetle barn owl barnacle barnacle goose barracuda Bartram, William basenji basking shark bass basset hound bat bat-eared fox beagle beak bear beaver bedbug Bedlington terrier bee
bee-eater beekeeping beeswax beetle beluga beluga Bernese mountain dog bichon frise bighorn billfish biodiversity biomass biome biosphere bird bird of prey bird-of-paradise birdsong bison bittern
bivalve black bass black bear black snake black widow blackbird blackcap blackfly blackpoll warbler blenny blind fish blister beetle bloodhound blowfly blue (butterfly) blue crab blue whale bluebird bluefish bluegill
boa boar bobcat bobolink bobwhite boll weevil bollworm bonefish bongo bonito bonnet monkey bonobo bony fish booby boomslang border collie borzoi Boston terrier botfly bottlenose dolphin
bovid bowerbird bowfin box turtle boxer Brahman bream breeding brine shrimp Bronx Zoo brook trout brown bear brown recluse spider brown trout bryozoan buffalo Buffon, G(eorges)-L(ouis) Leclerc, comte de bug bull terrier bulldog
bullfinch bullfrog bullhead bumblebee bunting burbot Burmese cat bushmaster bustard butterfly buzzard cabbage looper cabbage white caddis fly caecilian caiman cairn terrier calico cat camel Canada goose
canary canine cannibalism canvasback Cape buffalo capuchin (monkey) capybara caracal cardinal caribou carnivore carnosaur carp cassowary caste cat catbird caterpillar catfish cattle
cavy Celebes black macaque centipede cephalopod cetacean chafer chaffinch chameleon Chapman, Frank Michler char Charolais chat cheetah chevrotain chickadee chicken chigger Chihuahua chimera chimpanzee
chinchilla chinook salmon chipmunk chordate chow chow chub chukar chum salmon cicada cichlid civet clam cloaca Clydesdale cnidarian coati cobia cobra cockatiel cockatoo
cockchafer cockle cockroach cod coelacanth coho collie colobus monkey Colorado potato beetle Commoner, Barry conch conditioning condor conger eel conservation cony coot Cope, Edward Drinker copepod copper (butterfly)
copperhead coquina (clam) coral coral snake cormorant corn earworm cottony-cushion scale cougar courtship behaviour cow cowbird cowrie coyote crab crane crane fly crappie crayfish cricket crocodile
crow crown-of-thorns starfish crustacean ctenophore cuckoo cucumber beetle curassow curlew cusk cutthroat trout cutting horse cuttlefish cutworm dabbling duck dace dachshund daddy longlegs dairy farming dalmatian damselfly
Dandie Dinmont terrier darter Darwin's finch deathwatch beetle decapod deer deer mouse Deinonychus Delacour, Jean Theodore dermestid (beetle) dickcissel dik-dik dingo dinosaur Diplodocus dipper dipteran dire wolf displacement activity display behaviour
distemper diving duck Doberman pinscher dobsonfly dodo dog dogfish dolphin domestic cat domestication donkey dormouse dove dragonfly drill drosophila drum dryopithecine duck dugong
duiker dung beetle Dungeness crab eagle earthworm earwig echidna echinoderm echolocation ecology ecosystem ectotherm eel eelworm egret Ehrlich, Paul R(alph) eider eland elapid electric eel
electric ray elephant elephant seal elk emu endangered species endotherm entomology environmentalism Eohippus equine ermine Eskimo dog estrus ethology evening grosbeak extinction (of species) Fabricius, Johann Christian factory farming fairy shrimp
falcon fauna feather feather star feed feeding behaviour fennec fer-de-lance ferret fiddler crab field mouse filarial worm fin whale finch fire ant firefly fish fisher flamingo flatfish
flatworm flea flea beetle flicker flounder fluke fly flycatcher flying fish flying squirrel food chain foot-and-mouth disease (FMD) forage Fossey, Dian fox fox terrier foxhound free-tailed bat frigate bird Frisch, Karl von
fritillary frog fruit bat fruit fly fulmar fur seal gadwall galago gallinule gannet gar garter snake gastropod gazelle gecko geoduck gerbil German shepherd gibbon Gila monster
giraffe glowworm gnat gnatcatcher gnu goat goby golden eagle golden lion tamarin goldeneye goldfinch goldfish Goodall, Jane goose gopher gorilla goshawk Gould, Stephen Jay gourami grackle
grape phylloxera grasshopper gray fox grayling great auk Great Dane great horned owl great white shark grebe greyhound greylag grizzly bear grosbeak ground squirrel grouper grouse grunion guanaco Guernsey guide dog
guillemot guinea fowl guinea pig guinea worm gull guppy gypsy moth gyrfalcon habit habituation haddock hagfish hairstreak hake halibut hammerhead shark hamster harbour seal hare harp seal
harrier hartebeest hawk hawk moth heartworm hedgehog hellbender herbivore Hereford hermit crab heron herring herring gull hippopotamus hog hognose snake Holstein Homo honeybee hornbill
horned owl horned toad horse horsefly horsehair worm horseshoe crab hound house mouse house sparrow housefly howler monkey hummingbird humpback whale hydra hyena hyrax ibex ibis iguana impala
imprinting indigo snake insect insectivore instinct International Whaling Commission (IWC) invertebrate Irish elk Irish terrier Irish wolfhound ivory-billed woodpecker jack jackal jackdaw jackrabbit jaeger jaguar Japanese beetle jay jellyfish
Jersey jewfish Jordan, David Starr junco June beetle jungle fowl kangaroo kangaroo rat Karakul katydid kea kestrel killdeer killer whale killifish king crab king snake kingfish kingfisher kite
kittiwake kiwi koala Komodo dragon kookaburra krill kudu lacewing ladybug ladyfish lake trout lamb lamprey lapwing lark larva Latreille, Pierre-André leaf insect leaf miner leafhopper
leech leghorn lemming lemur leopard leopard seal lepidopteran Lhasa apso life limpet lingcod lion lionfish Lipizzaner livestock lizard llama lobster locomotion locust
longhair loon looper Lorenz, Konrad (Zacharias) loris louse louse, human lovebird luna moth lynx lyrebird macaque macaw mackerel mackerel shark magpie Maine coon cat mako shark mallard Maltese
mamba mammal mammoth manatee mandrill manta ray mantis Manx cat marabou marine biology marlin marmoset marmot Marsh, O(thniel) C(harles) marsupial marten martin mastiff mastodon mayfly
meadowlark mealybug Mediterranean fruit fly medusa meerkat menhaden merganser Merino merlin metamorphosis midge miller millipede mimicry Miner, Jack mink minnow mite moa moccasin
mockingbird mole mollusk molting monarch butterfly mongoose monitor monkey monkfish monotreme moorhen moose moray Morgan morpho mosquito moth mountain goat mourning dove mouse
Muir, John mule mule deer mullet muntjac murre musk ox muskellunge muskrat mussel mynah narwhal Nature Conservancy nautilus needlefish nematode nene neo-Darwinism nest New World monkey
Newfoundland newt nighthawk nightingale nightjar Nile perch nudibranch nurse shark nuthatch nutria nyala nymph ocelot octopus okapi Old English sheepdog Old World monkey omnivore onychophoran opossum
orangutan oriole ornithischian ornithology oryx osprey ostrich otter ouzel overpopulation owl ox oyster oystercatcher paddlefish painted lady painted turtle Palomino panda panda, lesser
pangolin papillon parakeet parasitism parrot parrot fish partridge passenger pigeon passerine peacock peccary pecking order Pekingese pelican penguin perch Percheron peregrine falcon periwinkle Persian cat
pest pet Peterson, Roger Tory petrel phalarope pheasant phoebe photoperiodism phylloxera pickerel pig pigeon pika pike pilchard pill bug pilot fish pilot whale pink salmon pinniped
pintail pinto pinworm pipit piranha pit bull terrier pit viper plaice planarian platypus play plover pocket mouse pointer polar bear polecat pollack polychaete polyp Pomeranian
pompano pony poodle porcupine porgy porpoise Portuguese man-of-war possum potato beetle poultry farming prairie chicken prairie dog predation primate proboscis monkey pronghorn protoceratops Przewalski's horse ptarmigan Pteranodon
pterodactyl pterosaur puffer puffin pug pupa python quahog quail quarter horse quetzal rabbit raccoon racer rail rainbow trout ranch raptor rat rat snake
ratite rattlesnake raven ray razor clam red deer red fox redfish redstart reflex reindeer remora reproductive behaviour reptile retriever rhea rhesus monkey rhinoceros Rhodesian ridgeback right whale
roach roadrunner robber fly robin rockfish rodent roe deer rook rorqual rotifer Rottweiler ruffed grouse ruminant sable sabre-toothed tiger sailfish Saint Bernard salamander salmon saluki
Samoyed San Diego Zoo San Jose scale sand dollar sand flea sand fly sand shark sandhill crane sandpiper Santa Gertrudis sapsucker sardine saturniid moth sauger saurischian sauropod sawfish sawfly scale insect scallop
scampi scarab beetle scaup schipperke schnauzer schooling behaviour scorpion scorpion fish scoter Scott, Sir Peter Markham Scottish fold cat Scottish terrier screech owl screwworm scrod sculpin sea anemone sea bass sea cow sea cucumber
sea eagle sea fan sea horse sea lion sea otter sea snake sea squirt sea urchin seal Sealyham terrier secretary bird sei whale serval Seton, Ernest Thompson setter sex shad shar-pei shark shearwater
sheep sheepdog sheepshead shelduck shellfish Shetland pony Shetland sheepdog shih tzu shiner shipworm shorthair cat Shorthorn shoveler shrew shrike shrimp Siamese cat Siamese fighting fish Siberian husky sidewinder
Sierra Club silage silkworm moth silverfish skate skimmer skink skipper skua skunk skylark sled dog sloth slug smelt snail snail darter snake snapper snapping turtle
snipe snook snow leopard snowshoe hare snowy egret snowy owl social learning sockeye salmon softshell turtle sole songbird sow bug spadefish spaniel sparrow sparrow hawk spectacled bear sperm whale sphynx cat spider
spider crab spider mite spider monkey spittlebug spitz sponge spoonbill sprat spring peeper springbok spruce budworm squash bug squid squirrel squirrel monkey Standardbred starfish starling stegosaur stickleback
stilt stingray stonefly stork storm petrel sturgeon sucker sucking louse suckling Suffolk sulphur butterfly sun bear sunfish surgeonfish swallow swallowtail butterfly swan swift swordfish symbiosis
systems ecology tadpole tamarin tanager tapeworm tapir tarantula tarpon tarsier Tasmanian devil Tasmanian wolf taxidermy taxonomy teal Tennessee Walking Horse tent caterpillar termite tern terrapin terrier
territorial behaviour tetra theropod Thoroughbred thrasher thresher shark thrips thrush tick tiger tiger beetle tiger moth tiger shark tiger swallowtail tigon tilapia tilefish Tinbergen, Nikolaas tit toad
toadfish toothed whale tortoise toucan towhee toy dog tree frog Triceratops trichina triggerfish trilobite tropical fish trout trumpeter swan tsetse fly tuatara tube worm tuna tunicate turbot
turkey turkey vulture Turkish Angora cat Turkish van cat turtle turtledove tussock moth tyrannosaur ungulate vampire bat Velociraptor vertebrate vervet monkey vicuña viper vireo vole vulture wagtail wahoo
walking catfish wallaby wallaroo walleye walrus wapiti warble fly warbler warthog wasp water buffalo water flea water moccasin water snake waterbuck waterfowl waxwing weakfish weasel weevil
weimaraner Welsh corgi whale whale shark whelk whippet whippoorwill whistling swan white butterfly white-tailed deer whitefish whitefly whiting whooping crane wigeon wildcat wildlife conservation Wilson, Alexander wing wolf
wolf spider wolverine wombat wood duck wood rat wood thrush wood warbler woodchuck woodcock woodpecker woolly bear working dog World Wildlife Fund worm wrasse wren yak yellow jacket yellowhammer yellowlegs
Yorkshire terrier zebra zebra fish zebra mussel zoo zoology zooplankton