(For biographies of Zoologists, see the end of the chapter on Biology)
Zoology: General
- Abomasum
- Acetabulum
- Animal
- Aquarium
- Aviary
- Beak
- Breeds and Breeding
- Carapace
- Colours of Animals
- Comparative Anatomy
- Conch
- Contractile Vacuole
- Crepuscular
- Dew-claw
- Dewlap
- Dorsiventral
- Dredge
- Egg
- Feather
- Grub
- Herd
- Hibernation
- Incubation and Incubators
- Instinct
- Intelligence in Animals
- Karyogamy
- Larval Forms
- Meganucleus
- Membranelle
- Metamerism
- Metamorphosis
- Micronucleus
- Migration
- Mimicry
- Mongrel
- Monster
- Moult
- Nest
- Nidification
- Plankton
- Proboscis
- Pylome
- Quill
- Regeneration of Lost Parts
- Sex
- Song (of Birds)
- Taxidermy
- Vermin
- Zoology
- Zoological Distribution
- Zoological Gardens
- Zoological Nomenclature
Zoology, Systematic: Invertebrata
- Acanthocephala
- Acineta
- Actinozoa
- Algae
- Amoeba
- Annelida
- Anthozoa
- Appendiculata
- Aptera
- Arachnida
- Arcella
- Arthropoda
- Articulata
- Aspirotrochaceae
- Brachiopoda
- Campodea
- Cephalopoda
- Chaetognatha
- Chaetopoda
- Ciliata
- Coccidia
- Coelentera
- Coleoptera
- Crustacea
- Ctenophora
- Cystoflagellata
- Dendrocometes
- Desmoscolecida
- Difflugia
- Dinoflagellata
- Diptera
- Echinoderma
- Echiuroidea
- Ectospora
- Endospora
- Entomostraca
- Epistylis
- Filosa
- Flagellata
- Foraminifera
- Gastropoda
- Gastrotricha
- Gephyrea
- Globigerina
- Gnathopoda
- Gregarines
- Gymnostomaceae
- Haemosporidia
- Haplodrili
- Heliozoa
- Hemiptera
- Heterokaryota
- Hexapoda
- Hydromedusae
- Hydrozoa
- Hymenoptera
- Infusoria
- Kinorhyncha
- Labyrinthulidea
- Lamellibranchia
- Lepidoptera
- Malacostraca
- Mastigophora
- Medusa
- Mesozoa
- Mollusca
- Molluscoida
- Mycetozoa
- Myonemes
- Myriapoda
- Myzostomida
- Nematoda
- Nematomorpha
- Nemertina
- Neuroptera
- Nummulite
- Opalina
- Orthoptera
- Paramecium
- Pedipalpi
- Pelomyxa
- Pentastomida
- Peripatus
- Perissodactyla
- Phoronidea
- Planarians
- Platyelmia
- Polyp
- Polyzoa
- Priapuloidea
- Proteomyxa
- Protista
- Protogenes
- Protomyxa
- Protozoa
- Pseudopod
- Pycnogonida, or Pantopoda
- Radiata
- Radiolaria
- Rhizopoda
- Rotifera
- Sarcodina
- Scaphopoda
- Scyphomedusae
- Sipunculoidea
- Sponges
- Sporozoa
- Stentor
- Thyrostraca
- Thysanoptera
- Thysanura
- Trematodes
- Trypanosomes
- Vampyrella
- Vorticella
Zoology, Systematic: Vertebrata
- Amphibia
- Artiodactyla
- Amphioxus
- Balanoglossus
- Batrachia
- Bovidae
- Caecilia
- Carnivora
- Cetacea
- Chaetosomatida
- Chiroptera
- Cyclostomata, or Marsipobranchii
- Cyprinodonts
- Edentata
- Equidae
- Hemichorda
- Hyracoidea
- Insectivora
- Marsupialia
- Monodelphia
- Monotremata
- Pecora
- Proboscidea
- Pterobranchia
- Ratitae
- Rodentia
- Ruminantia
- Salmon and Salmonidae
- Sauropsida
- Selachians, or Elasmobranchii
- Suina
- Tardigrada
- Teleostomes
- Tunicata
- Tylopoda
- Ungulata
- Vertebrata
Zoology, Natural History: Mammals
- Aard-vark
- Aard-wolf
- Addax
- Agouti
- Alpaca
- Ant-eater
- Antelope
- Anthropoid Apes
- Aona
- Ape
- Argali
- Armadillo
- Ass
- Aurochs
- Avahi
- Aye-aye
- Babirusa
- Baboon
- Badger
- Bandicoot
- Bandicoot-rat
- Bantin
- Barbary Ape
- Bat
- Bear
- Beaver
- Beluga
- Bharal
- Binturong
- Bison
- Black Ape
- Black Buck
- Boar
- Bongo
- Bottlenose Whale
- Bronco
- Buck
- Buffalo
- Bushbuck
- Ca’ing Whale
- Calf
- Camel
- Capuchin Monkey
- Capybara
- Caracal
- Cat
- Catarrhine Ape
- Cattle
- Cavy
- Chacma
- Chamois
- Cheeta
- Chevrotain
- Chimpanzee
- Chinchilla
- Chiru
- Civet
- Clouded Leopard
- Coati
- Colugo
- Coyote
- Coypu
- Dasyure
- Deer
- Diana Monkey
- Dingo
- Dog
- Dolphin
- Dormouse
- Douroucouli
- Dromedary
- Dugong
- Duiker
- Echidna
- Eland
- Elephant
- Elk
- Ermine
- Eyra
- Fallow-deer
- Ferret
- Field-mouse
- Filander
- Flying-fox
- Flying Squirrel
- Foussa
- Fox
- Galago
- Galeopithecus
- Gaur
- Gayal
- Gelada
- Genet
- Gerbil
- Gerenuk
- Gibbon
- Giraffe
- Glutton, or Wolverine
- Gnu
- Goat
- Gopher
- Goral
- Gorilla
- Green Monkey
- Grison
- Grivet
- Groove-toothed Squirrel
- Ground-squirrel
- Guanaco
- Guenon
- Guereza
- Hamster
- Hare
- Hartebeest
- Hedgehog
- Heifer
- Heron
- Hind
- Hippopotamus
- Horse
- Hound
- Howler
- Humpback-whale
- Hunting Dog
- Hyena
- Ibex
- Ichneumon
- Indri
- Jackal
- Jaguar
- Jaguarondi
- Jennet
- Jerboa
- Jumping-hare
- Jumping-mouse
- Jumping-shrew
- Kangaroo
- Kangaroo-rat
- Kinkajou
- Kit-fox
- Klipspringer
- Koala
- Kudu
- Langur
- Lemming
- Lemur
- Leopard
- Linsang
- Lion
- Llama
- Loris
- Lynx
- Macaque
- Macrauchenia
- Mammalia
- Manati
- Mandrill
- Mangabey
- Manul
- Mare
- Markhor
- Marmoset
- Marmot
- Marshbuck
- Marsupial Mole
- Marten
- Merino
- Mink
- Mole
- Mole-rat
- Mole-shrew
- Mona Monkey
- Monkey
- Moose
- Mouflon
- Mouse
- Mule
- Muntjac
- Musk-deer
- Musk-ox
- Musk-rat
- Musk-shrew
- Mustang
- Nilgai
- Ocelot
- Octodon
- Okapi
- Opossum
- Orang-utan
- Oribi
- Oryx
- Otter
- Ox
- Paca
- Palla
- Palm-civet
- Panda
- Pangolin
- Panther
- Pariah Dog
- Patas Monkey
- Peccary
- Père David’s Deer
- Phalanger
- Pica
- Pig
- Pithecanthropus Erectus
- Platypus
- Pluto Monkey
- Pocket-gopher
- Pocket-mouse
- Polecat
- Pony
- Porcupine
- Porpoise
- Potoroo
- Potto
- Pouched-mouse
- Prairie-marmot
- Primates
- Proboscis-monkey
- Prongbuck
- Puma
- Quagga
- Rabbit
- Raccoon
- Raccoon-dog
- Ram
- Rat
- Ratel
- Reedbuck
- Reindeer
- Rhinoceros
- Rhytina
- River-hog
- Rocky-Mountain Goat
- Roebuck
- Rorqual
- Sable Antelope
- Saiga
- Saki
- Seal
- Serow
- Serval
- Sheep
- Shrew
- Sifaka
- Sirenia
- Skunk
- Sloth
- Snow-leopard
- Souslik
- Sperm-whale
- Spider-monkey
- Spiny Squirrel
- Springbuck
- Squirrel
- Squirrel Monkey
- Star-nosed Mole
- Suricate
- Swine
- Tahr
- Takin
- Tapir
- Tarsier
- Tenrec
- Thylacine
- Tiger
- Tiger-cat
- Timber-Wolf
- Tree Kangaroo
- Tree-shrew
- Udad, Aoudad, or Audad
- Uakari
- Vampire
- Vervet
- Vicugña
- Viscacha
- Vole
- Wallaby
- Walrus
- Waltzing Mouse
- Wanderu
- Wart-hog
- Waterbuck
- Water-deer
- Water-opossum
- Weasel
- Whale
- Wolf
- Wombat
- Yak
- Zebra