Wikipedia:Vital articles/Level/5/Biology and health sciences/Animals

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Animals Biology Health Plants

Vital articles is a list of subjects for which Wikipedia should have corresponding high-quality articles. It serves as a centralized watchlist to track the status of Wikipedia's most essential articles. This is one of the sub-lists of the fifty thousand article Vital articles/Level 5 and is currently under construction.

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The progress bar is auto-updated via category count, and the symbols and article counts are updated daily by User:cewbot. Please read the FAQ before modifying the article list.

Quota 2,400 articles.

Total 2,397 articles.

Class	#Articles
FA	175
GA	241
B	431
C	758
LIST	7
FFA	16
DGA	16
Start	695
Stub	90

General classifications

This section contains 16 articles.

1. Archosaur
2. Amniote
3. Arthropod (Level 3)
4. Aquatic animal
5. Bilateria (Level 4)
6. Chordate (Level 4)
7. Craniate (Level 4)
8. Deuterostome
9. Ediacaran biota
10. Gnathostomata (Level 4)
11. Invertebrate (Level 4)
12. Megafauna
13. Protostome
14. Tetrapod (Level 4)
15. Vertebrate (Level 4)
16. Worm

Animal breeds and hybrids

This section contains 123 articles.

Cats

This section contains 23 articles.

1. Abyssinian cat
2. American Shorthair
3. Balinese cat
4. Birman
5. Burmese cat
6. Cornish Rex
7. Devon Rex
8. Moggy
9. Exotic Shorthair
10. Himalayan cat
11. Maine Coon
12. Manx cat
13. Oriental Shorthair
14. Persian cat
15. Ragdoll
16. Ragamuffin cat
17. Russian Blue
18. Siamese cat (Level 4)
19. Somali cat
20. Sphynx cat
21. Tabby cat
22. Tonkinese cat
23. Turkish Angora

Cattle

This section contains 17 articles.

1. Aberdeen Angus
2. American Brahman (Level 4)
3. Charolais cattle
4. Chianina
5. Corriente
6. Guernsey cattle
7. Hereford cattle (Level 4)
8. Highland cattle
9. Holstein Friesian (Level 4)
10. Limousin cattle
11. Jersey cattle
12. Simmental cattle
13. Spanish Fighting Bull
14. Texas Longhorn

Miniature cattle

This section contains 3 articles.

1. Australian Lowline
2. Dexter cattle
3. Vechur cattle

Chickens

This section contains 5 articles.

1. Australorp
2. Leghorn chicken
3. Plymouth Rock chicken
4. Rhode Island Red
5. Silkie

Dogs

This section contains 32 articles.

1. Free-ranging dog
   1. African village dog
   2. Pye-dog
2. Gun dog (Level 4)
   1. Pointing dog
   2. Retriever
   3. Setter
   4. Spaniel
   5. Water dog
3. Herding dog (Level 4)
   1. Collie
4. Hound (Level 4)
   1. Scent hound
      1. Basset
      2. Coonhound
      3. Foxhound
   2. Sighthound
      1. Greyhound
5. Livestock guardian dog
6. Mastiff (Level 4)
   1. Bulldog type
7. Mongrel
   1. Dog crossbreed
8. Spitz (Level 4)
   1. Husky
   2. Laika (dog type)
9. Terrier (Level 4)
   1. Bull and terrier
   2. Fell Terrier
   3. Fox Terrier
10. Toy dog
    1. Bichon

Donkeys

This section contains 4 articles.

1. Amiatina
2. Baudet du Poitou
3. Corsican donkey
4. North American donkeys

Goats

This section contains 5 articles.

1. Angora goat
2. Alpine goat
3. Cashmere goat
4. Kinder goat
5. Nigerian Dwarf goat

Horses

This section contains 11 articles.

1. Arabian horse (Level 4)
2. Andalusian horse (Level 4)
3. Appaloosa
4. Clydesdale horse
5. Friesian horse (Level 4)
6. Lipizzan
7. Miniature horse
8. Palomino
9. Pony (Level 4)
   1. Shetland pony
10. Thoroughbred (Level 4)

Hybrids

This section contains 8 articles.

1. Bovid hybrid
2. Canid hybrid
3. Hinny
4. Mule (Level 4)
5. Panthera hybrid
6. Sheep–goat hybrid
7. Ursid hybrid
8. Zebroid

Pigeons

This section contains 3 articles.

1. Domestic pigeon
   1. Fancy pigeon
   2. Homing pigeon

Pigs

This section contains 3 articles.

1. Berkshire pig
2. Black Iberian pig
3. Vietnamese Pot-bellied

Rabbits

This section contains 5 articles.

1. Angora rabbit
2. Chinchilla rabbit
3. Dwarf rabbit
4. Flemish Giant rabbit
5. Rex rabbit

Sheep

This section contains 5 articles.

1. Jacob sheep
2. Leicester Longwool
3. Merino (Level 4)
4. New Zealand Romney
5. Rambouillet sheep

Turkeys

This section contains 2 articles.

1. Broad Breasted White turkey
2. Norfolk Black

Individual animals

This section contains 15 articles.

1. Balto
2. Bucephalus
3. Dolly (sheep)
4. Hachikō
5. Jumbo
6. Koko (gorilla)
7. Laika
8. Lonesome George
9. Man o' War
10. Phar Lap
11. Punxsutawney Phil
12. Rin Tin Tin
13. Seabiscuit
14. Secretariat (horse)
15. Tilikum (orca)

Mammals

This section contains 598 articles.

Mammals: General

This section contains 29 articles.

1. Mammal (Level 3)
2. Astrapotheria
3. Colugo
4. Hyaenodonta
   1. Hyaenodon
5. Litopterna
   1. Macrauchenia
6. Marine mammal
7. Mesonychia
   1. Mesonychidae
8. Notoungulata
   1. Toxodon
9. Oxyaenidae
10. Pangolin (Level 4)
11. Pantodonta
    1. Coryphodon
12. Saber-toothed predator
13. Taeniodonta
14. Treeshrew
15. Uintatherium
16. Ungulate

Stem-mammals

This section contains 8 articles.

1. Mammaliaformes
   1. Castorocauda
   2. Megazostrodon
   3. Multituberculata
   4. Eomaia
   5. Euharamiyida
   6. Eutriconodonta
      1. Repenomamus

Afrotheria

This section contains 33 articles.

Proboscidea

This section contains 21 articles.

1. Proboscidea (Level 4)
2. Deinotheriidae
   1. Deinotherium
3. Elephantidae
   1. Elephant (Level 4)
      1. African bush elephant
      2. African forest elephant
      3. Asian elephant
      4. Dwarf elephant
      5. North African elephant
   2. Mammoth (Level 4)
      1. Columbian mammoth
      2. Woolly mammoth
4. Gomphothere
   1. Anancus
5. Mammutidae
   1. Mastodon
6. Moeritherium
7. Platybelodon
8. Stegodontidae
   1. Stegodon

Sirenia

This section contains 4 articles.

1. Sirenia (Level 4)
   1. Dugong
   2. Manatee
   3. Steller's sea cow

Other afrotheres

This section contains 8 articles.

1. Aardvark (Level 4)
2. Arsinoitherium
3. Desmostylia
4. Elephant shrew
5. Giant otter shrew
6. Golden mole
7. Hyrax (Level 4)
8. Tenrec

Bats

This section contains 10 articles.

1. Bat (Level 4)
2. Megabat (Level 4)
   1. Pteropus (Level 4)
      1. Indian flying fox
3. Microbat (Level 4)
   1. Bulldog bat
   2. Honduran white bat
   3. Horseshoe bat
   4. Vampire bat (Level 4)
   5. Vespertilionidae

Carnivora

This section contains 147 articles.

Carnivora: General

This section contains 1 article.

1. Carnivora (Level 4)

Bears

This section contains 14 articles.

1. Bear (Level 4)
2. American black bear
3. Arctodus
4. Asian black bear
5. Brown bear (Level 4)
   1. Eurasian brown bear
   2. Grizzly bear
   3. Kodiak bear
6. Cave bear
7. Giant panda (Level 4)
8. Polar bear (Level 4)
9. Sloth bear
10. Spectacled bear
11. Sun bear

Canines

This section contains 33 articles.

1. African wild dog
2. African wolf
3. Bat-eared fox
4. Bush dog
5. Canidae (Level 4)
6. Caninae
7. Canis
8. Coyote (Level 4)
9. Coywolf
10. Dhole
11. Dire wolf
12. Dog (Level 3)
13. Dingo (Level 4)
14. Ethiopian wolf
15. Falkland Islands wolf
16. Fox (Level 4)
    1. Crab-eating fox
    2. Gray fox
    3. Vulpes
       1. Arctic fox
       2. Fennec fox
       3. Red fox
17. Jackal (Level 4)
    1. Black-backed jackal
    2. Golden jackal
    3. Side-striped jackal
18. Maned wolf
19. Nyctereutes
20. Red wolf
21. Short-eared dog
22. South American fox
23. Wolf (Level 4)
24. Wolfdog

Felines

This section contains 31 articles.

1. Felidae (Level 4)
2. Cat (Level 3)
   1. Feral cat
   2. Wildcat
3. Caracal
4. Cheetah (Level 4)
5. Cougar (Level 4)
6. Fishing cat
7. Lynx (Level 4)
   1. Bobcat
8. Ocelot
9. Pallas's cat
10. Rusty-spotted cat
11. Serval

Panthera

This section contains 17 articles.

1. Panthera
2. Clouded leopard
3. Sunda clouded leopard
4. Jaguar (Level 4)
5. Leopard (Level 4)
6. Lion (Level 4)
   1. American lion
   2. Asiatic lion
   3. Barbary lion
7. Panthera spelaea
8. Snow leopard (Level 4)
9. Tiger (Level 4)
   1. Bengal tiger
   2. White tiger
   3. Caspian tiger
   4. Siberian tiger
   5. Sumatran tiger

Mustelidae

This section contains 25 articles.

1. Mustelidae (Level 4)
2. Badger
   1. American badger
   2. European badger (Level 4)
   3. Honey badger (Level 4)
3. Ferret-badger
4. Ictonychinae
5. Marten (Level 4)
   1. Beech marten
   2. Sable
   3. Yellow-throated marten
6. Megalictis
7. Neogale
   1. American mink
   2. Long-tailed weasel
8. Otter (Level 4)
   1. Giant otter
   2. Sea otter (Level 4)
   3. Smooth-coated otter
9. Weasel (Level 4)
   1. European mink
   2. European polecat
      1. Ferret
   3. Stoat (Level 4)
10. Wolverine (Level 4)

Pinnipeds

This section contains 9 articles.

1. Pinniped (Level 4)
2. Eared seal (Level 4)
   1. Harbor seal
   2. Leopard seal
   3. Elephant seal
3. Earless seal (Level 4)
   1. Fur seal
   2. Sea lion
4. Walrus (Level 4)

Procyonidae

This section contains 7 articles.

1. Procyonidae (Level 4)
2. Bassaricyon
3. Cacomistle
4. Coati
5. Kinkajou
6. Raccoon
7. Ringtail

Other carnivora

This section contains 27 articles.

1. African palm civet
2. Ailuridae
   1. Red panda
3. Amphicyonidae
   1. Amphicyon
4. Asiatic linsang
5. Borophagus
6. Eupleridae
   1. Fossa (animal)
7. Hyena (Level 4)
   1. Aardwolf
   2. Cave hyena
8. Machairodontinae
   1. Dinofelis
   2. Smilodon (Level 4)
9. Mephitidae
   1. Skunk (Level 4)
      1. Spotted skunk
10. Mongoose (Level 4)
    1. Egyptian mongoose
    2. Meerkat
11. Nimravidae
12. Viverridae
    1. African civet
    2. Banded palm civet
    3. Binturong
    4. Genet (animal)

Eulipotyphla

This section contains 10 articles.

1. Erinaceidae
   1. Hedgehog (Level 4)
      1. Domesticated hedgehog
   2. Moonrat
2. Desman
3. Mole (animal) (Level 4)
   1. Eastern mole
   2. Star-nosed mole
4. Shrew (Level 4)
5. Solenodon

Artiodactyla

This section contains 150 articles.

1. Artiodactyl (Level 4)
2. Ruminant (Level 4)

Bovidae

This section contains 43 articles.

1. Bovidae (Level 4)
2. African buffalo (Level 4)
3. Antelope (Level 4)
   1. Addax
   2. Blackbuck
   3. Dik-dik
   4. Duiker
   5. Gazelle (Level 4)
   6. Gerenuk
   7. Greater kudu
   8. Impala (Level 4)
   9. Oryx
      1. Arabian oryx
   10. Saiga antelope
   11. Springbok
   12. Wildebeest (Level 4)
4. Aurochs (Level 4)
5. Banteng
6. Capra (genus) (Level 4)
   1. Alpine ibex
   2. Goat (Level 4)
   3. Markhor
   4. Mountain goat
   5. Wild goat
7. Cattle (Level 3)
   1. Zebu
8. Chamois
9. Gaur (Level 4)
10. Muskox (Level 4)
11. Serow
12. Sheep (Level 3)
    1. Barbary sheep
    2. Bighorn sheep
    3. Dall sheep
13. Tahr
14. Takin
15. Water buffalo (Level 4)
    1. Wild water buffalo
16. Yak (Level 4)
    1. Wild yak

Bison

This section contains 3 articles.

1. Steppe bison
2. American bison (Level 4)
3. European bison (Level 4)

Camelidae

This section contains 10 articles.

1. Aepycamelus
2. Alpaca (Level 4)
3. Guanaco (Level 4)
4. Llama (Level 4)
5. Vicuña (Level 4)
6. Camel (Level 4)
   1. Bactrian camel (Level 4)
      1. Wild Bactrian camel
   2. Dromedary (Level 4)
      1. Australian feral camel

Cetaceans

This section contains 42 articles.

1. Cetacea (Level 4)
2. Whale (Level 4)
3. Evolution of cetaceans
   1. Ambulocetus
   2. Basilosaurus
   3. Dorudon
   4. Livyatan
   5. Odobenocetops
   6. Remingtonocetidae

Baleen whales

This section contains 9 articles.

1. Baleen whale
2. Blue whale (Level 4)
3. Bowhead whale
4. Fin whale
5. Gray whale
6. Humpback whale (Level 4)
7. Minke whale
8. Right whale
   1. Southern right whale

Toothed whale

This section contains 24 articles.

1. Toothed whale
2. Beaked whale
   1. Mesoplodon
3. Beluga whale
4. Dolphin (Level 4)
   1. Oceanic dolphin
   2. Bottlenose dolphin
      1. False killer whale
      2. Orca (Level 4)
      3. Pilot whale
      4. Hector's dolphin
      5. Right whale dolphin
      6. Risso's dolphin
   3. River dolphin
      1. Baiji
      2. Amazon river dolphin
5. Narwhal
6. Porpoise (Level 4)
   1. Dall's porpoise
   2. Finless porpoise
   3. Harbour porpoise
   4. Vaquita
7. Sperm whale (Level 4)
   1. Pygmy sperm whale

Deer

This section contains 16 articles.

1. Deer (Level 4)
   1. Red deer (Level 4)
   2. Sika deer
2. Cervalces
3. Chital
4. Elk (Level 4)
5. European fallow deer
6. Irish elk
7. Moose (Level 4)
8. Muntjac
9. Père David's deer
10. Pudu
11. Reindeer (Level 4)
12. Roe deer
13. Water deer
14. White-tailed deer

Giraffidae

This section contains 9 articles.

1. Giraffidae
2. Giraffe (Level 4)
   1. Masai giraffe
   2. Northern giraffe
   3. Reticulated giraffe
   4. Southern giraffe
3. Okapi
4. Prolibytherium
5. Sivatherium

Pigs

This section contains 9 articles.

1. Suidae
   1. Sus (genus) (Level 4)
      1. Bornean bearded pig
      2. Pig (Level 3)
      3. Wild boar (Level 4)
   2. Babirusa
   3. Warthog
   4. Red river hog
2. Peccary (Level 4)

Other artiodactyla

This section contains 19 articles.

1. Andrewsarchus
2. Anoplotheriidae
   1. Anoplotherium
3. Antilocapridae
   1. Pronghorn (Level 4)
4. Anthracotheriidae
   1. Anthracotherium
5. Cainotheriidae
6. Chevrotain
   1. Dorcatherium
7. Entelodontidae
   1. Daeodon
8. Hippopotamus (Level 4)
   1. Pygmy hippopotamus
9. Merycoidodontoidea
10. Moschidae
    1. Musk deer
11. Palaeomerycidae
12. Protoceratidae

Lagomorphs

This section contains 9 articles.

1. Lagomorpha (Level 4)
2. Hare (Level 4)
   1. Antelope jackrabbit
   2. European hare
   3. Snowshoe hare
3. Pika
4. Rabbit (Level 4)
   1. Cottontail rabbit
   2. European rabbit

Marsupials

This section contains 40 articles.

1. Marsupial (Level 4)
   1. Didelphodon
   2. Marsupial mole
2. Sparassodonta
   1. Thylacosmilus
3. Phalangeriformes
   1. Common brushtail possum
   2. Common ringtail possum
   3. Honey possum
   4. Sugar glider
4. Dasyuromorphia (Level 4)
   1. Numbat
   2. Quoll
   3. Dunnart
   4. Tasmanian devil (Level 4)
   5. Thylacine
5. Opossum (Level 4)
   1. Virginia opossum
6. Peramelemorphia (Level 4)
   1. Bandicoot
   2. Macrotis

Diprotodontia

This section contains 19 articles.

1. Diprotodontia (Level 4)
2. Macropodiformes
   1. Sthenurus
   2. Kangaroo (Level 4)
      1. Red kangaroo
      2. Eastern grey kangaroo
      3. Western grey kangaroo
   3. Wallaby
      1. Rock-wallaby
   4. Wallaroo
   5. Tree-kangaroo
   6. Potoroo
   7. Quokka
   8. Pademelon
3. Vombatiformes
   1. Koala (Level 4)
   2. Wombat
   3. Thylacoleo
   4. Diprotodon

Monotremes

This section contains 3 articles.

1. Monotreme (Level 4)
2. Echidna (Level 4)
3. Platypus (Level 4)

Perissodactyla

This section contains 39 articles.

1. Perissodactyla (Level 4)
2. Brontotheriidae
   1. Megacerops
3. Chalicotheriidae
   1. Chalicotherium
4. Lophiodon
5. Palaeotheriidae
   1. Palaeotherium
6. Rhinocerotoidea
   1. Paraceratherium
   2. Rhinoceros (Level 4)
      1. Elasmotherium
      2. Black rhinoceros
      3. Indian rhinoceros
      4. Javan rhinoceros
      5. Sumatran rhinoceros
      6. White rhinoceros
      7. Teleoceras
      8. Woolly rhinoceros
7. Tapir (Level 4)
   1. Malayan tapir

Equidae

This section contains 18 articles.

1. Equidae (Level 4)
2. Evolution of the horse
   1. Eohippus
3. Donkey (Level 4)
   1. African wild ass
   2. Kiang
   3. Onager
4. Hipparionini
   1. Hipparion
5. Horse (Level 3)
   1. Feral horse
   2. Przewalski's horse
   3. Tarpan
6. Zebra (Level 4)
   1. Grévy's zebra
   2. Mountain zebra
   3. Plains zebra
      1. Quagga

Primates

This section contains 64 articles.

1. Primate (Level 3)
2. Monkey (Level 4)

Apes

This section contains 23 articles.

1. Ape (Level 4)
   1. Dryopithecus
   2. Gigantopithecus
   3. Hominidae
      1. Homininae
   4. Proconsul (mammal)
2. Gibbon (Level 4)
   1. Lar gibbon
   2. Siamang
3. Gorilla (Level 4)
   1. Cross River gorilla
   2. Eastern lowland gorilla
   3. Mountain gorilla
   4. Western lowland gorilla
4. Orangutan (Level 4)
   1. Bornean orangutan
   2. Sumatran orangutan
   3. Tapanuli orangutan
5. Pan (genus) (Level 4)
   1. Chimpanzee (Level 4)
   2. Bonobo (Level 4)
6. Sivapithecus
7. Human (Level 1)

New World monkeys

This section contains 11 articles.

1. New World monkey (Level 4)
   1. Capuchin monkey (Level 4)
   2. Howler monkey
   3. Lion tamarin
   4. Marmoset
      1. Pygmy marmoset
   5. Night monkey
   6. Spider monkey (Level 4)
   7. Squirrel monkey
   8. Tamarin
   9. Uakari

Old World monkeys

This section contains 16 articles.

1. Old World monkey (Level 4)
2. Cercopithecinae
   1. Baboon (Level 4)
      1. Hamadryas baboon
   2. Chlorocebus
   3. Gelada
   4. Macaque (Level 4)
      1. Crab-eating macaque
      2. Japanese macaque
      3. Mangabey
      4. Rhesus macaque (Level 4)
   5. Mandrill
3. Colobinae
   1. Black-and-white colobus
   2. Semnopithecus
   3. Proboscis monkey

Strepsirrhini

This section contains 10 articles.

1. Strepsirrhini (Level 4)
   1. Galago (Level 4)
   2. Lemur (Level 4)
      1. Aye-aye
      2. Indri
      3. Ring-tailed lemur
      4. Ruffed lemur
      5. Sifaka
      6. Subfossil lemur
   3. Slow loris (Level 4)

Other primates

This section contains 2 articles.

1. Purgatorius
2. Tarsier (Level 4)

Rodents

This section contains 53 articles.

1. Rodent (Level 3)
2. Agouti
3. Blesmol
4. Capybara (Level 4)
5. Nutria (Level 4)
6. Beaver (Level 4)
7. Chinchilla
8. Jerboa
9. Dormouse (Level 4)
10. Giant pouched rat
11. Gopher
12. Groundhog
13. Guinea pig (Level 4)
14. Hamster (Level 4)
15. Horned gopher
16. Kangaroo rat
17. Lemming
18. Mara (mammal)
19. Muridae (Level 4)
    1. Gerbillinae
    2. Rat (Level 4)
       1. Black rat
       2. Brown rat (Level 4)
       3. Laboratory rat
       4. Polynesian rat
    3. Mouse (Level 4)
       1. House mouse
       2. Laboratory mouse
20. Muskrat (Level 4)
21. Naked mole-rat
22. Octodon
23. Pedetes
24. Porcupine (Level 4)
    1. Old World porcupine
    2. Prehensile-tailed porcupine
25. Spalax
26. Spermophilus
27. Squirrel (Level 4)
    1. Callosciurus
    2. Chipmunk
    3. Flying squirrel
    4. Ground squirrel
       1. Marmot (Level 4)
       2. Prairie dog
    5. Oriental giant squirrel
    6. Pine squirrel
    7. Sciurus
       1. Eastern gray squirrel
       2. Red squirrel
    8. Tree squirrel
    9. Xerini
28. Viscacha
29. Vole

Xenarthra

This section contains 11 articles.

1. Anteater (Level 4)
   1. Giant anteater
   2. Tamandua
2. Armadillo (Level 4)
   1. Giant armadillo
   2. Glyptodon
3. Sloth (Level 4)
   1. Ground sloth
      1. Megatherium
      2. Megalonyx
   2. Two-toed sloth

Birds

This section contains 384 articles.

Basics

This section contains 12 articles.

1. Bird (Level 3)
2. Bird of prey (Level 4)
3. Fowl
4. Palaeognathae (Level 4)
5. Seabird (Level 4)
6. Cuckoo-roller
7. Grebe
8. Flamingo (Level 4)
9. Loon (Level 4)
10. Mousebird
11. Seriema
12. Tropicbird

Accipitrimorphae

This section contains 27 articles.

1. Accipiter (Level 4)
2. Bearded vulture
3. Buteo
4. Crested caracara
5. Eagle (Level 4)
   1. Sea eagle
      1. Bald eagle
   2. Bateleur
   3. Golden eagle (Level 4)
   4. Haast's eagle
   5. Harpy eagle
   6. Philippine eagle
   7. Steppe eagle
   8. Wedge-tailed eagle
6. Elaninae
7. European honey buzzard
8. Falcon (Level 4)
   1. Gyrfalcon
   2. Peregrine falcon (Level 4)
9. New World vulture (Level 4)
   1. Andean condor
   2. California condor
10. Old World vulture (Level 4)
    1. Cinereous vulture
    2. Egyptian vulture
11. Osprey (Level 4)
12. Secretarybird (Level 4)

Anseriformes

This section contains 27 articles.

1. Anatidae
2. Duck (Level 4)
   1. Diving duck
   2. Mallard (Level 4)
   3. Mergini
      1. Eider
      2. Long-tailed duck
      3. Mergus
   4. Northern pintail
   5. Northern shoveler
3. Goose (Level 4)
   1. Anser (bird)
      1. Domestic goose
      2. Greylag goose
      3. Swan goose
      4. Snow goose
   2. Branta
      1. Canada goose
      2. Nene (bird)
4. Magpie goose
5. Moa-nalo
6. Muscovy duck
7. Screamer
8. Tadorna
9. Swan (Level 4)
   1. Black swan
10. Whistling duck

Apodiformes

This section contains 8 articles.

1. Hummingbird (Level 4)
   1. Patagona
   2. Rufous hummingbird
   3. White-necked jacobin
2. Swift (bird) (Level 4)
   1. Common swift
   2. Swiftlet
3. Treeswift

Caprimulgiformes and related

This section contains 5 articles.

1. Nightjar (Level 4)
2. Frogmouth
3. Oilbird
4. Owlet-nightjar
5. Potoo

Charadriiformes

This section contains 33 articles.

1. Charadriiformes
2. Auk (Level 4)
   1. Great auk
   2. Guillemot
   3. Puffin
3. Buttonquail
4. Courser
5. Greater painted-snipe
6. Jacanidae
7. Laridae
   1. Gull (Level 4)
      1. Larus
      2. Black-headed gull
   2. Rynchops
   3. Tern (Level 4)
      1. Arctic tern
8. Lapwing
9. Oystercatcher
10. Plover
11. Pratincole
12. Sandpiper (Level 4)
    1. Curlew
    2. Dowitcher
    3. Godwit
    4. Phalarope
    5. Ruff (bird)
    6. Snipe
    7. Tringa
    8. Turnstone
13. Skua
14. Stilt
    1. Avocet
15. Stone-curlew

Ciconiiformes

This section contains 13 articles.

1. Heron (Level 4)
   1. Bittern
   2. Cattle egret
   3. Little egret
   4. Night heron
2. Ibis (Level 4)
   1. African sacred ibis
3. Shoebill (Level 4)
4. Spoonbill
5. Stork (Level 4)
   1. Black stork
   2. Marabou stork
   3. White stork

Columbimorphae

This section contains 19 articles.

1. Columbidae (Level 4)
   1. Barbary dove
   2. Common wood pigeon
   3. Crowned pigeon
   4. Dodo (Level 4)
   5. Eared dove
   6. Eurasian collared dove
   7. Feral pigeon
   8. Fruit dove
   9. Gallicolumba
   10. Laughing dove
   11. Mourning dove
   12. Nicobar pigeon
   13. Passenger pigeon (Level 4)
   14. Rock dove (Level 4)
   15. Spotted dove
   16. Zebra dove
2. Mesite
3. Sandgrouse

Coraciiformes

This section contains 13 articles.

1. Bee-eater
2. Kingfisher
   1. River kingfisher (Level 4)
   2. Tree kingfisher
      1. Kookaburra
   3. Water kingfisher
3. Ground roller
4. Hornbill (Level 4)
   1. Oriental pied hornbill
   2. Ground hornbill
5. Hoopoe (Level 4)
6. Motmot
7. Tody

Cuculiformes and relatives

This section contains 10 articles.

1. Cuckoo (Level 4)
   1. Ani (bird)
   2. Common cuckoo
   3. Coua
   4. Coucal
   5. Clamator
   6. Koel
   7. Roadrunner
2. Hoatzin (Level 4)
3. Turaco (Level 4)

Galliformes

This section contains 31 articles.

1. Galliformes (Level 4)
2. Chachalaca
3. Curassow
4. Francolin
5. Grey junglefowl
6. Grouse (Level 4)
7. Guan (bird)
8. Guineafowl (Level 4)
9. Monal
10. Megapode
11. Partridge
12. Peafowl (Level 4)
13. Phasianidae
14. Red junglefowl
    1. Chicken (Level 3)
15. Tragopan
16. Turkey (bird)
    1. Domestic turkey (Level 4)
    2. Ocellated turkey
    3. Wild turkey

Pheasants

This section contains 6 articles.

1. Pheasant
2. Blue eared pheasant
3. Common pheasant (Level 4)
4. Golden pheasant
5. Green pheasant
6. Lady Amherst's pheasant

Quails

This section contains 5 articles.

1. Domesticated quail
2. New World quail
3. Old World quail
   1. Common quail (Level 4)
   2. King quail

Gruiformes

This section contains 17 articles.

1. Gruiformes (Level 4)
2. Crane (bird) (Level 4)
   1. Antigone (bird)
   2. Grey crowned crane
   3. Demoiselle crane
   4. Siberian crane
3. Bustard (Level 4)
   1. Lesser florican
4. Kagu
5. Limpkin
6. Psophia
7. Rail (bird) (Level 4)
   1. Coot
   2. Moorhen
   3. Swamphen
      1. Takahē
8. Sunbittern

Passerines

This section contains 85 articles.

Passerines: General

This section contains 2 articles.

1. Passerine (Level 4)
2. Songbird (Level 4)

Corvoidea

This section contains 16 articles.

1. Bird-of-paradise (Level 4)
2. Bowerbird
3. Corvidae (Level 4)
   1. Chough
   2. Corvus (Level 4)
      1. American crow
      2. Common raven (Level 4)
      3. Hooded crow
      4. House crow
      5. Rook (bird)
   3. Eurasian magpie (Level 4)
   4. Jay
   5. Western jackdaw
4. Honeyeater (Level 4)
5. Lyrebird (Level 4)
6. Shrike (Level 4)

Passerida

This section contains 61 articles.

1. Accentor
2. Atlantic canary
   1. Domestic canary
3. Australian magpie
4. Bulbul (Level 4)
5. Bunting (bird) (Level 4)
6. Cardinalidae (Level 4)
7. Crossbill
8. Dipper
9. Drongo
10. Estrildidae
    1. Java sparrow
    2. Gouldian finch
11. Finch (Level 4)
12. Gnatcatcher
13. Hawaiian honeycreeper
14. Icterid (Level 4)
15. Kinglet
16. Lark (Level 4)
17. Locustellidae
18. Manakin
19. Mockingbird (Level 4)
    1. Northern mockingbird
20. Motacillidae
    1. Longclaw
    2. Pipit
    3. Wagtail
21. New World warbler (Level 4)
22. Nuthatch
23. Old World flycatcher (Level 4)
    1. Chat (bird)
    2. European robin (Level 4)
    3. Common nightingale (Level 4)
24. Old World oriole
25. Old World sparrow (Level 4)
    1. House sparrow (Level 4)
26. Oxpecker
27. Penduline tit
28. Old World warbler
29. Ploceidae (Level 4)
    1. Red-billed quelea
30. Starling (Level 4)
    1. Myna
       1. Common hill myna
       2. Common myna (Level 4)
    2. Common starling (Level 4)
31. Sunbird (Level 4)
32. Swallow (Level 4)
    1. Barn swallow
    2. Delichon
33. Tanager
    1. Darwin's finches
34. Tit (bird) (Level 4)
35. Thrush (bird) (Level 4)
    1. American robin (Level 4)
    2. Common blackbird
36. Vireo
37. Wallcreeper
38. Waxwing
39. White-eye
40. Wren (Level 4)

Tyranni

This section contains 6 articles.

1. Tyranni
2. Antbird (Level 4)
3. Cotinga
   1. Cock-of-the-rock
4. Ovenbird (family) (Level 4)
5. Tyrant flycatcher (Level 4)

Pelecaniformes

This section contains 9 articles.

1. Cormorant (Level 4)
   1. European shag
2. Darter (Level 4)
3. Frigatebird (Level 4)
4. Hamerkop
5. Pelican (Level 4)
6. Sulidae (Level 4)
   1. Booby
   2. Gannet

Piciformes

This section contains 9 articles.

1. Piciformes
2. Lybiidae
3. Megalaimidae
4. Coraciidae
5. Honeyguide (Level 4)
6. Jacamar
7. New World barbet
8. Toucan (Level 4)
9. Woodpecker (Level 4)

Procellariiformes

This section contains 6 articles.

1. Procellariiformes (Level 4)
2. Albatross (Level 4)
3. Austral storm petrel
4. Northern storm petrel
5. Procellariidae
   1. Giant petrel

Psittaciformes

This section contains 17 articles.

1. Cockatoo (Level 4)
   1. Cockatiel
   2. Gang-gang cockatoo
2. New Zealand parrot
   1. Kākāpō
3. True parrot
   1. Parrot (Level 4)
   2. Amazon parrot
   3. Budgerigar (Level 4)
   4. Grey parrot
   5. Loriini
   6. Lovebird
   7. Macaw
      1. Ara (bird) (Level 4)
   8. Parakeet
   9. Rainbow lorikeet
   10. Rosella

Ratites

This section contains 8 articles.

1. Cassowary (Level 4)
2. Elephant bird
3. Emu (Level 4)
4. Kiwi (bird) (Level 4)
5. Moa (Level 4)
6. Common ostrich (Level 4)
7. Rhea (bird) (Level 4)
8. Tinamou (Level 4)

Sphenisciformes

This section contains 5 articles.

1. Penguin (Level 4)
   1. African penguin
   2. Emperor penguin
   3. Little penguin
   4. Crested penguin

Strigiformes

This section contains 8 articles.

1. Owl (Level 4)
2. Strigidae
   1. Eurasian eagle-owl (Level 4)
   2. Little owl
   3. Scops owl
   4. Snowy owl
   5. Strix (bird)
3. Barn owl (Level 4)

Trogoniformes

This section contains 2 articles.

1. Trogon (Level 4)
2. Resplendent quetzal (Level 4)

Prehistoric birds

This section contains 20 articles.

1. Archaeopteryx (Level 4)
2. Asteriornis
3. Balaur bondoc
4. Confuciusornis
5. Dromornis
6. Enantiornithes
7. Gastornis
8. Hesperornis
9. Ichthyornis
10. Inkayacu
11. Pelagornithidae
    1. Pelagornis
12. Phorusrhacidae
    1. Kelenken
    2. Phorusrhacos
    3. Titanis
13. Plotopteridae
14. Presbyornis
15. Teratornithidae
    1. Argentavis

Reptiles

This section contains 297 articles.

Reptiles: General

This section contains 7 articles.

1. Reptile (Level 3)
2. Sauropsida
3. Sauria
4. Archosauromorpha
5. Squamata
   1. Amphisbaenia
   2. Dibamidae

Crocodilia

This section contains 15 articles.

1. Crocodilia (Level 4)
2. Alligator (Level 4)
   1. American alligator
   2. Chinese alligator
3. Caiman (Level 4)
   1. Black caiman
   2. Cuvier's dwarf caiman
4. Crocodile (Level 4)
   1. Dwarf crocodile
   2. Freshwater crocodile
   3. Mugger crocodile
   4. Nile crocodile
   5. Saltwater crocodile
5. Gharial
6. False gharial

Lizards

This section contains 42 articles.

1. Lizard (Level 4)
2. Cordylidae
3. Gecko (Level 4)
   1. Common house gecko
   2. Eublepharis
   3. Mediterranean house gecko
   4. Tokay gecko
   5. Uroplatinae
4. Gila monster (Level 4)
5. Lacertidae
   1. Lacerta (genus)
   2. Viviparous lizard
6. Legless lizard
   1. Anguinae
7. Monitor lizard
   1. Asian water monitor
   2. Bengal monitor
   3. Komodo dragon (Level 4)
   4. Nile monitor
   5. Perentie
8. Skink (Level 4)
   1. Blue-tongued skink
9. Teiidae
   1. New Mexico whiptail

Iguania

This section contains 18 articles.

1. Agamidae
   1. Chinese water dragon
   2. Frilled lizard
   3. Draco (lizard)
   4. Hydrosaurus
   5. Oriental garden lizard
   6. Pogona
   7. Thorny devil
   8. Uromastyx
2. Chameleon (Level 4)
   1. Jackson's chameleon
3. Basiliscus (lizard)
4. Common collared lizard
5. Dactyloidae
6. Iguanidae
   1. Green iguana (Level 4)
   2. Marine iguana
7. Horned lizard (Level 4)

Rhynchocephalia

This section contains 3 articles.

1. Rhynchocephalia
   1. Pleurosauridae
   2. Tuatara (Level 4)

Snakes

This section contains 40 articles.

1. Snake (Level 4)
2. Boidae (Level 4)
   1. Anaconda
   2. Boa constrictor
3. Colubridae
   1. Ahaetulla
   2. Bungarus
   3. Chrysopelea
   4. Corn snake
   5. Garter snake (Level 4)
   6. Grass snake
   7. Kingsnake
4. Elapidae
   1. Cobra
      1. King cobra
      2. Naja (Level 4)
   2. Common death adder
   3. Coral snake (Level 4)
   4. Mamba (Level 4)
      1. Black mamba
      2. Jameson's mamba
   5. Red-bellied black snake
   6. Sea snake (Level 4)
      1. Sea krait
         1. Yellow-lipped sea krait
      2. Yellow-bellied sea snake
   7. Taipan
      1. Inland taipan
5. Pythonidae
   1. Python (genus)
      1. Ball python
      2. Reticulated python
6. Scolecophidia
7. Viper
   1. Pit viper
      1. Agkistrodon piscivorus (Level 4)
      2. Eastern copperhead (Level 4)
   2. Rattlesnake (Level 4)
   3. Adder (Level 4)
8. Xenopeltis

Turtles

This section contains 20 articles.

1. Turtle (Level 4)
2. Alligator snapping turtle (Level 4)
3. Box turtle (Level 4)
4. Chelodina
5. Common snapping turtle (Level 4)
6. Diamondback terrapin
7. Painted turtle (Level 4)
8. Red-eared slider (Level 4)
9. Sea turtle (Level 4)
   1. Green sea turtle
   2. Leatherback sea turtle
   3. Loggerhead sea turtle
   4. Hawksbill sea turtle
10. Tortoise (Level 4)
    1. Aldabra giant tortoise
    2. Galápagos tortoise (Level 4)
    3. African spurred tortoise
    4. Testudo (genus)
11. Trionychidae
12. Wood turtle

Prehistoric archosaurs

This section contains 126 articles.

Dinosaurs

This section contains 88 articles.

1. Dinosaur (Level 3)
2. Feathered dinosaur
3. Eoraptor
4. Herrerasaurus
5. Saurischia

Ornitischians

This section contains 33 articles.

1. Ornithischia
2. Heterodontosauridae
   1. Heterodontosaurus
3. Marginocephalia
   1. Pachycephalosauria
      1. Pachycephalosaurus
      2. Stegoceras
   2. Ceratopsia
      1. Pachyrhinosaurus
      2. Protoceratops
      3. Psittacosaurus
      4. Styracosaurus
      5. Triceratops (Level 4)
      6. Yinlong
4. Ornithopoda
   1. Hypsilophodon
   2. Iguanodon (Level 4)
   3. Leaellynasaura
   4. Hadrosauridae
      1. Corythosaurus
      2. Edmontosaurus
      3. Lambeosaurus
      4. Parasaurolophus
5. Thyreophora
   1. Ankylosauria
      1. Ankylosaurus
      2. Euoplocephalus
      3. Nodosauridae
   2. Scelidosaurus
   3. Stegosauria
      1. Kentrosaurus
      2. Stegosaurus (Level 4)
6. Thescelosaurus

Sauropods

This section contains 13 articles.

1. Plateosaurus
2. Sauropoda
   1. Amargasaurus
   2. Apatosaurus (Level 4)
   3. Brachiosaurus
   4. Brontosaurus
   5. Camarasaurus
   6. Diplodocus (Level 4)
   7. Europasaurus
   8. Mamenchisauridae
   9. Titanosauria
      1. Argentinosaurus
      2. Saltasauridae

Theropods

This section contains 37 articles.

1. Theropoda
2. Carnosauria
   1. Abelisauridae
      1. Carnotaurus
   2. Allosaurus (Level 4)
   3. Ceratosaurus
   4. Dilophosaurus
   5. Giganotosaurus
   6. Masiakasaurus
   7. Megalosaurus
   8. Spinosauridae
      1. Baryonyx
      2. Spinosaurus
3. Coelophysis
4. Coelurosauria
   1. Alvarezsauridae
   2. Anchiornis
   3. Caenagnathidae
   4. Compsognathus
   5. Dromaeosauridae
      1. Deinonychus
      2. Halszkaraptor
      3. Incisivosaurus
      4. Microraptor
      5. Unenlagiinae
      6. Utahraptor
      7. Velociraptor (Level 4)
   6. Ornithomimosauria
      1. Deinocheirus
      2. Ornithomimus
   7. Oviraptor
   8. Scansoriopterygidae
   9. Therizinosaurus
   10. Troodontidae
   11. Tyrannosauroidea
       1. Tyrannosaurus (Level 4)
       2. Yutyrannus

Pterosaurs

This section contains 15 articles.

1. Pterosaur (Level 4)
2. Anurognathidae
3. Azhdarchidae
   1. Hatzegopteryx
   2. Quetzalcoatlus
4. Dimorphodon
5. Dsungaripterus
6. Peteinosaurus
7. Pteranodon
8. Pterodactylus
9. Pterodaustro
10. Rhamphorhynchus
11. Ornithocheirus
12. Tapejaridae
    1. Thalassodromeus

Other prehistoric archosaurs

This section contains 23 articles.

1. Aetosaur
2. Euparkeria
3. Lagerpetidae
4. Metriorhynchidae
5. Phytosaur
6. Poposauroidea
   1. Arizonasaurus
   2. Effigia
7. Postosuchus
8. Proterosuchus
9. Scleromochlus
10. Silesauridae
11. Teleosauridae

Prehistoric crocodiles

This section contains 10 articles.

1. Boverisuchus
2. Deinosuchus
3. Notosuchia
   1. Baurusuchidae
   2. Kaprosuchus
   3. Simosuchus
4. Mekosuchus
5. Sarcosuchus
6. Stomatosuchidae
7. Voay

Other prehistoric reptiles

This section contains 44 articles.

1. Drepanosaur
2. Youngina
3. Hylonomus
4. Longisquama
5. Rhynchosaur
6. Sharovipteryx
7. Shringasaurus
8. Thalattosauria
9. Tanystropheus

Parareptilia

This section contains 3 articles.

1. Parareptilia
   1. Pareiasauria
      1. Scutosaurus

Prehistoric squamates

This section contains 8 articles.

1. Madtsoiidae
2. Megalania
3. Mosasaur
   1. Dallasaurus
   2. Mosasaurus
   3. Tylosaurus
4. Najash
5. Titanoboa

Choristoderes

This section contains 2 articles.

1. Choristodera
   1. Champsosaurus

Prehistoric turtles

This section contains 4 articles.

1. Archelon
2. Meiolania
3. Proganochelys
4. Stupendemys

Prehistoric marine reptiles

This section contains 18 articles.

1. Ichthyosauria
   1. Ichthyosaurus
   2. Ophthalmosaurus
   3. Platypterygius
   4. Shonisaurus
   5. Temnodontosaurus
2. Mesosaurus
3. Nothosaurus
4. Placodontia
5. Plesiosaur (Level 4)
   1. Plesiosauroidea
      1. Cryptoclidus
      2. Elasmosaurus
      3. Polycotylidae
      4. Plesiosaurus
   2. Pliosauroidea
      1. Kronosaurus
      2. Liopleurodon

Proto-mammals

This section contains 18 articles.

1. Synapsida (Level 4)
   1. Cotylorhynchus
2. Pelycosaur
   1. Dimetrodon (Level 4)
   2. Edaphosaurus
3. Therapsida
   1. Burnetia
   2. Cynodontia
      1. Thrinaxodon
   3. Dicynodontia
      1. Lystrosaurus
      2. Placerias
   4. Dinocephalia
      1. Moschops
   5. Gorgonopsia
      1. Gorgonops
      2. Inostrancevia
   6. Therocephalia

Reptiliomorphs

This section contains 3 articles.

1. Reptiliomorpha
   1. Diadectes
   2. Seymouria

Amphibians

This section contains 55 articles.

1. Amphibian (Level 3)
2. Caecilian (Level 4)

Frogs and toads

This section contains 28 articles.

1. Frog (Level 4)
2. African bullfrog
3. Alytidae
   1. Common midwife toad
4. Banded bullfrog
5. Ceratophryidae
6. Darwin's frog
7. European spadefoot toad
8. Fire-bellied toad
9. Glass frog
10. Goliath frog
11. Hylidae (Level 4)
    1. Agalychnis
12. Leptodactylidae (Level 4)
13. Mantella
14. Poison dart frog
15. Tailed frog
16. Toad
    1. True toad (Level 4)
       1. Cane toad
       2. Common toad
       3. Duttaphrynus melanostictus
17. True frog (Level 4)
    1. American bullfrog (Level 4)
    2. Rana (genus)
    3. Wood frog
18. Tree frog
19. Xenopus

Salamanders and newts

This section contains 15 articles.

1. Salamander (Level 4)
2. Axolotl
3. Asiatic salamander
4. Giant salamander
   1. Chinese giant salamander
   2. Japanese giant salamander
5. Mole salamander
   1. Fire salamander
6. Necturus
7. Olm
8. Plethodontidae
9. Newt (Level 4)
   1. Eastern newt
   2. Rough-skinned newt
10. Sirenidae

Prehistoric amphibians

This section contains 10 articles.

1. Acanthostega
2. Ichthyostega
3. Lepospondyli
   1. Diplocaulus
   2. Microsauria
4. Temnospondyli
   1. Koolasuchus
   2. Stereospondyli
5. Tiktaalik
6. Triadobatrachus

Fishes

This section contains 306 articles.

Fishes: General

This section contains 19 articles.

1. Fish (Level 3)
   1. Coastal fish
   2. Coldwater fish
   3. Coral reef fish (Level 4)
   4. Deep-sea fish (Level 4)
   5. Demersal fish
   6. Freshwater fish
   7. Pelagic fish
   8. Saltwater fish
   9. Tropical fish
2. Chondrichthyes (Level 4)
3. Osteichthyes (Level 4)
   1. Actinopterygii (Level 4)
      1. Teleost
   2. Sarcopterygii (Level 4)
      1. Coelacanth (Level 4)
         1. Indonesian coelacanth
         2. West Indian Ocean coelacanth
      2. Lungfish (Level 4)

Chondrichthyes

This section contains 47 articles.

Batoidea

This section contains 13 articles.

1. Batomorphi (Level 4)
2. Eagle ray
   1. Manta ray (Level 4)
   2. Cownose ray
3. Electric ray (Level 4)
4. Guitarfish
   1. Fiddler ray
   2. Sawfish (Level 4)
   3. Wedgefish
5. Skate (fish) (Level 4)
6. Stingray (Level 4)
   1. Whiptail stingray
   2. Potamotrygonidae

Chimaeriformes

This section contains 4 articles.

1. Callorhinchus
2. Chimaera (Level 4)
3. Rabbit fish
4. Spotted ratfish

Sharks

This section contains 30 articles.

1. Shark (Level 4)
2. Angelshark
3. Bullhead shark
4. Carpet shark
   1. Nurse shark (Level 4)
   2. Whale shark (Level 4)
   3. Wobbegong
   4. Zebra shark
5. Scyliorhinidae
6. Cookiecutter shark
7. Cow shark
8. Frilled shark
9. Lamniformes
   1. Basking shark
   2. Goblin shark
   3. Great white shark (Level 4)
   4. Longfin mako shark
   5. Megamouth shark
   6. Sand shark
   7. Sand tiger shark
   8. Thresher shark
10. Greenland shark
11. Hammerhead shark (Level 4)
12. Houndshark
13. Requiem shark
    1. Blue shark
    2. Bull shark
    3. River shark
    4. Tiger shark (Level 4)
14. Sawshark

Osteichthyes

This section contains 225 articles.

1. John Dory

Acipenseriformes

This section contains 3 articles.

1. Paddlefish
2. Sturgeon (Level 4)
   1. Beluga (sturgeon)

Anguilliformes

This section contains 9 articles.

1. Eel (Level 4)
   1. European eel
   2. Snipe eel
2. European conger
3. Heterocongrinae
4. Moray eel
   1. Ribbon eel
5. Pelican eel
6. Tarpon

Aulopiformes

This section contains 3 articles.

1. Bathypterois grallator
2. Lancetfish
3. Synodontidae

Beloniformes

This section contains 7 articles.

1. Beloniformes
2. Flying fish (Level 4)
3. Halfbeak
4. Needlefish
5. Pacific saury
6. Ricefish
7. Wrestling halfbeak

Characiformes

This section contains 8 articles.

1. Characiformes (Level 4)
2. Characidae
3. Headstander
4. Tetra
   1. Neon tetra
5. Pencil fish
6. Piranha (Level 4)
   1. Tambaqui

Clupeiformes

This section contains 10 articles.

1. Clupeiformes
2. Anchovy (Level 4)
3. Clupeidae
   1. Alosa
   2. Herring (Level 4)
      1. Atlantic herring
   3. Ilish (Level 4)
   4. Menhaden
   5. Sardine (Level 4)
   6. Sprat (Level 4)

Cypriniformes

This section contains 15 articles.

1. Cypriniformes (Level 4)
2. Loach
   1. Misgurnus fossilis
3. Cyprinidae
   1. Carassius
   2. Carp (Level 4)
   3. Common bream
   4. Common carp
   5. Danionin
   6. Goldfish (Level 4)
   7. Grass carp
   8. Koi (Level 4)
   9. Minnow
   10. Silver carp
   11. Tench

Cyprinodontiformes

This section contains 5 articles.

1. Cyprinodontiformes (Level 4)
2. Four-eyed fish
3. Guppy (Level 4)
4. Killifish
5. Pupfish

Esociformes

This section contains 4 articles.

1. Esociformes
2. American pickerel
3. Muskellunge
4. Northern pike (Level 4)

Gadiformes

This section contains 10 articles.

1. Gadiformes
2. Alaska pollock (Level 4)
3. Burbot
4. Cod (Level 4)
   1. Atlantic cod
5. Grenadiers (fish)
6. Haddock (Level 4)
7. Hake
8. Merlangius
9. Pollock

Gasterosteiformes

This section contains 3 articles.

1. Gasterosteoidei
2. Stickleback (Level 4)
   1. Three-spined stickleback

Gonorynchiformes

This section contains 2 articles.

1. Gonorynchiformes
2. Milkfish (Level 4)

Gymnotiformes

This section contains 5 articles.

1. Gymnotiformes
2. Banded knifefish
3. Black ghost knifefish
4. Electric eel (Level 4)
5. Glass knifefish

Holosteans

This section contains 2 articles.

1. Gar
2. Bowfin

Lampriformes

This section contains 5 articles.

1. Lampriformes
2. Oarfish (Level 4)
   1. Giant oarfish
3. Opah
4. Ribbonfish

Lophiiformes

This section contains 8 articles.

1. Anglerfish (Level 4)
2. Black seadevil
3. Fanfin
4. Frogfish
   1. Handfish
   2. Sea toad
5. Footballfish
6. Goosefish

Mugiliformes

This section contains 2 articles.

1. Mullet (fish) (Level 4)
2. Flathead grey mullet

Myctophiformes

This section contains 2 articles.

1. Myctophiformes
2. Lanternfish

Ophidiiformes

This section contains 4 articles.

1. Ophidiiformes (Level 4)
2. Cusk-eel
3. Pearlfish
4. Viviparous brotula

Osmeriformes and relatives

This section contains 3 articles.

1. Barreleye
2. Galaxiidae (Level 4)
3. Smelt (fish) (Level 4)

Osteoglossiformes

This section contains 5 articles.

1. Osteoglossiformes
2. Arapaima (Level 4)
3. Freshwater butterflyfish
4. Notopteridae
5. Mormyrinae

Perciformes

This section contains 63 articles.

1. Perciformes (Level 4)
2. Acanthuridae
   1. Paracanthurus
3. Clownfish
4. Antarctic fishes
   1. Antarctic toothfish
   2. Channichthyidae
5. Archerfish
6. Barracuda (Level 4)
7. Batrachoididae
8. Billfish
   1. Marlin (Level 4)
   2. Sailfish
   3. Swordfish (Level 4)
9. Black swallower
10. Blenniiformes
    1. Butterflyfish
11. Caranx
12. Cichlid (Level 4)
    1. Pterophyllum
    2. Tilapia (Level 4)
13. Cirrhitidae
14. Damselfish
15. Dragonet
16. Goby (Level 4)
    1. Elacatinus
    2. Gobiinae
    3. Mudskipper
17. Gourami
    1. Siamese fighting fish (Level 4)
18. Mahi-mahi (Level 4)
19. Moorish idol
20. Murray cod
21. Nile perch
22. Parrotfish
23. Perch (Level 4)
    1. European perch
24. Pumpkinseed
25. Pomacanthidae
    1. Emperor angelfish
26. Platax
27. Pomfret
28. Priacanthidae
29. Prowfish
30. Rabbitfish
31. Remora (Level 4)
32. Red mullet
33. Scombridae
    1. Bonito
    2. Mackerel (Level 4)
    3. Spanish mackerel
    4. Tuna (Level 4)
       1. Pacific bluefin tuna
       2. Skipjack tuna
34. Serranidae (Level 4)
    1. Anthias anthias
    2. European seabass (Level 4)
    3. Grouper (Level 4)
35. Sparidae
36. Tilefish
37. Weever
38. Wrasse (Level 4)
    1. Humphead wrasse

Pleuronectiformes

This section contains 6 articles.

1. Flatfish (Level 4)
2. Flounder (Level 4)
3. Halibut (Level 4)
4. Plaice (Level 4)
5. Sole (fish)
6. Turbot (Level 4)

Polypteriformes

This section contains 2 articles.

1. Bichir (Level 4)
2. Reedfish

Salmoniformes

This section contains 6 articles.

1. Salmonidae (Level 4)
2. Coregonus
3. Oncorhynchus
4. Salmon (Level 4)
   1. Atlantic salmon
5. Trout (Level 4)

Scorpaeniformes

This section contains 6 articles.

1. Scorpaeniformes (Level 4)
   1. Flathead (fish)
2. Lionfish
3. Sebastinae
4. Scorpaenidae
5. Triglidae

Siluriformes

This section contains 5 articles.

1. Catfish (Level 4)
   1. Basa (fish)
   2. Black bullhead
   3. Wels catfish
2. Loricariidae (Level 4)

Stomiiformes

This section contains 4 articles.

1. Stomiiformes
2. Gonostomatidae
3. Marine hatchetfish
4. Viperfish

Syngnathiformes

This section contains 7 articles.

1. Syngnathiformes
2. Common seadragon
3. Leafy seadragon
4. Pipefish
5. Seahorse (Level 4)
6. Shrimpfish
7. Florida Manetfish

Tetraodontiformes

This section contains 8 articles.

1. Tetraodontiformes
2. Filefish
3. Ocean sunfish (Level 4)
4. Ostraciidae
5. Porcupinefish
6. Tetraodontidae (Level 4)
   1. Takifugu
7. Triggerfish

Trachichthyiformes

This section contains 2 articles.

1. Anomalopidae
2. Slimehead

Prehistoric fish

This section contains 15 articles.

1. Placoderm (Level 4)
   1. Bothriolepis
   2. Dunkleosteus

Prehistoric chondrichthyans

This section contains 6 articles.

1. Acanthodii (Level 4)
2. Cretoxyrhina
3. Helicoprion
4. Hybodontiformes
5. Megalodon
6. Stethacanthus

Prehistoric osteichthyans

This section contains 6 articles.

1. Eusthenopteron
2. Hyneria
3. Leedsichthys
4. Mawsonia (fish)
5. Osteolepis
6. Xiphactinus

Agnatha

This section contains 17 articles.

1. Agnatha (Level 4)
2. Cyclostomi
3. Hagfish (Level 4)
4. Lamprey (Level 4)
   1. Pouched lamprey
   2. Sea lamprey

Prehistoric agnathae and early chordates

This section contains 11 articles.

1. Ostracoderm (Level 4)
   1. Anaspida
   2. Arandaspis
   3. Cephalaspis
   4. Pteraspis
2. Galeaspida
3. Conodont
4. Haikouichthys
5. Pikaia
6. Thelodonti
7. Vetulicolia

Crustaceans

This section contains 84 articles.

1. Crustacean (Level 3)
   1. Argulidae
   2. Barnacle
      1. Pollicipes pollicipes
      2. Lepas anatifera
   3. Branchiopoda
      1. Brine shrimp
         1. Sea-Monkeys
      2. Diplostraca
      3. Notostraca
   4. Copepod
   5. Ostracod (Level 4)

Malacostraca

This section contains 11 articles.

1. Malacostraca (Level 4)
2. Amphipoda
3. Cumacea
4. Isopoda
   1. Giant isopod
   2. Ligia
   3. Woodlouse (Level 4)
5. Krill (Level 4)
6. Leptostraca
7. Mantis shrimp
   1. Squilla mantis

Decapoda

This section contains 61 articles.

1. Decapod (Level 4)
   1. Axiidea
   2. Stenopodidea

Crabs and hermit crabs

This section contains 32 articles.

1. Anomura
   1. Coconut crab
   2. Hermit crab
   3. Hippoidea
   4. King crab
      1. Red king crab
   5. Porcelain crab
   6. Squat lobster
      1. Kiwa hirsuta
2. Crab (Level 4)
   1. Cancer pagurus
   2. Christmas Island red crab
   3. Dromiidae
   4. Fiddler crab
   5. Freshwater crab
   6. Ghost crab
   7. Grapsus grapsus
   8. Horsehair crab
   9. Majoidea
      1. Chionoecetes
      2. Japanese spider crab
      3. Maja squinado
   10. Mangrove crab
   11. Portunidae
       1. Callinectes sapidus
       2. Carcinus maenas
       3. Scylla serrata
       4. Velvet crab
   12. Ranina ranina
   13. Terrestrial crab
   14. Trapeziidae
   15. Xanthidae

Crayfishes and lobsters

This section contains 13 articles.

1. Crayfish (Level 4)
   1. Astacus astacus
   2. Procambarus alleni
   3. Cherax pulcher
2. Lobster (Level 4)
   1. American lobster
   2. Furry lobster
   3. Homarus gammarus
   4. Nephrops norvegicus
   5. Metanephrops challengeri
   6. Reef lobster
   7. Slipper lobster
   8. Spiny lobster

Shrimps and prawns

This section contains 13 articles.

1. Shrimp (Level 4)
   1. Alpheidae
   2. Caridina
   3. Cleaner shrimp
   4. Crangon crangon
   5. Macrobrachium rosenbergii
   6. Palaemon serratus
   7. Pandalus borealis
   8. Rhynchocinetidae
2. Prawn
   1. Penaeus monodon
   2. Whiteleg shrimp
   3. Indian prawn

Arachnids

This section contains 49 articles.

1. Amblypygi
2. Arachnid (Level 4)
3. Mite (Level 4)
   1. Flour mite
   2. Trombiculidae
4. Opiliones
5. Palpigradi
6. Pseudoscorpion (Level 4)
7. Ricinulei
8. Solifugae
9. Tick (Level 4)
10. Uropygi

Scorpions

This section contains 6 articles.

1. Scorpion (Level 4)
2. Arizona bark scorpion
3. Deathstalker
4. Emperor scorpion
5. Fattail scorpion
6. Tityus serrulatus

Spiders

This section contains 29 articles.

1. Spider (Level 4)
2. Agelenidae
3. Australian funnel-web spider
4. Brown recluse spider
5. Diving bell spider
6. Dolomedes
7. Huntsman spider
8. Jumping spider
   1. Bagheera kiplingi
   2. Portia (spider)
      1. Portia labiata
9. Latrodectus
   1. Redback spider
10. Mesothelae
    1. Linyphiidae
       1. Kimura spider
11. Orb-weaver spider
12. Pholcidae
    1. Pholcus phalangioides
13. Phoneutria
14. Tarantula (Level 4)
    1. Aphonopelma chalcodes
    2. Brachypelma hamorii
    3. Goliath birdeater
    4. Poecilotheria metallica
15. Tegenaria domestica
16. Theridiidae
17. Thomisidae
18. Wolf spider

Prehistoric arachnids

This section contains 2 articles.

1. Phalangiotarbida
2. Trigonotarbida

Insects

This section contains 205 articles.

Insects: General

This section contains 39 articles.

1. Insect (Level 3)
   1. Pterygota (Level 4)
2. Archaeognatha
3. Caddisfly
4. Earwig (Level 4)
5. Embioptera
6. Flea (Level 4)
   1. Cat flea
   2. Dog flea
   3. Oriental rat flea
7. Grylloblattidae
8. Louse (Level 4)
   1. Body louse (Level 4)
   2. Crab louse
   3. Head louse
9. Mantis (Level 4)
   1. Dead leaf mantis
   2. Empusidae
   3. Flower mantis
   4. Shield mantis
   5. Stick mantis
10. Mantophasmatidae
11. Mayfly
12. Mecoptera
13. Megaloptera
14. Neuroptera
    1. Antlion
15. Phasmatodea (Level 4)
    1. Common walkingstick
    2. Heteropteryx
    3. Phylliidae
    4. Timema
16. Plecoptera
17. Psocodea
18. Psocoptera
19. Snakefly
20. Strepsiptera
21. Thrips
22. Zoraptera

Beetles (Coleoptera)

This section contains 26 articles.

1. Beetle (Level 4)
   1. Pollen beetle
2. Blister beetle
3. Cardinal beetle
4. Coccinellidae (Level 4)
   1. Coccinella septempunctata
5. Dung beetle (Level 4)
6. Firefly (Level 4)
7. Flour beetle
8. Ground beetle
9. Leaf beetle
   1. Colorado potato beetle
10. Longhorn beetle
11. Rove beetle
    1. Nairobi fly
12. Scarabaeidae
    1. Cockchafer
    2. Goliathus
    3. Hercules beetle
    4. Japanese rhinoceros beetle
    5. Stag beetle
13. Water beetle
    1. Dytiscus
    2. Whirligig beetle
14. Weevil (Level 4)
    1. Giraffe weevil

Cockroaches & Termites (Blattodea)

This section contains 9 articles.

1. Blattodea
2. Cockroach (Level 4)
   1. American cockroach
   2. German cockroach
   3. Madagascar hissing cockroach
3. Termite (Level 4)
   1. Coptotermes gestroi
   2. Formosan subterranean termite
   3. Macrotermes bellicosus

Flies (Diptera)

This section contains 19 articles.

1. Fly (Level 4)
2. Drosophila melanogaster (Level 4)
3. Black fly (Level 4)
4. Botfly (Level 4)
5. Crane fly (Level 4)
6. Calliphoridae (Level 4)
7. Cecidomyiidae
8. Tabanidae (Level 4)
9. Housefly (Level 4)
10. Midge
11. Mosquito (Level 4)
    1. Aedes aegypti
    2. Anopheles
    3. Culex
12. Psychodidae
13. Sandfly
14. Tachinidae
15. Tephritidae
16. Tsetse fly (Level 4)

Hemiptera (true bugs)

This section contains 28 articles.

1. Hemiptera (Level 4)
   1. Acanthosoma
2. Aphid (Level 4)
3. Aphrophoridae
4. Bed bug (Level 4)
5. Cicada (Level 4)
   1. Periodical cicadas
6. Coreidae
7. Gerridae
   1. Halobates
8. Fulgoridae
9. Heteroptera
10. Leafhopper (Level 4)
11. Lygaeidae
12. Nepomorpha
    1. Belostomatidae
    2. Corixidae
    3. Notonectidae
    4. Ranatra
13. Pentatomoidea
14. Planthopper
15. Pyrrhocoris apterus
16. Reduviidae
17. Saldidae
18. Scale insect (Level 4)
19. Treehopper
20. Veliidae
21. Whitefly (Level 4)

Hymenoptera

This section contains 36 articles.

1. Hymenoptera (Level 4)
2. Ant (Level 4)
   1. Argentine ant
   2. Army ant
   3. Carpenter ant (Level 4)
   4. Fire ant (Level 4)
   5. Formica rufa
   6. Harvester ant
   7. Honeypot ant
   8. Leafcutter ant
   9. Myrmecia (ant)
   10. Ochetellus glaber
   11. Pharaoh ant
   12. Tapinoma melanocephalum
   13. Tapinoma sessile
   14. Weaver ant
   15. Yellow crazy ant
3. Bee (Level 4)
   1. Bumblebee (Level 4)
   2. Carpenter bee
   3. Cuckoo bee
   4. Stingless bee
   5. Honey bee
      1. Africanized bee (Level 4)
      2. European dark bee
      3. Western honey bee (Level 4)
4. Sawfly
5. Wasp (Level 4)
   1. Hornet (Level 4)
      1. Asian giant hornet
   2. Fig wasp
   3. Gall wasp
   4. Mud dauber
   5. Parasitoid wasp
   6. Tarantula hawk
   7. Yellowjacket

Lepidoptera

This section contains 26 articles.

1. Lepidoptera (Level 4)
2. Butterfly (Level 4)
   1. Swallowtail butterfly (Level 4)
      1. Birdwing
   2. Nymphalidae
      1. Monarch butterfly
      2. Morpho (genus)
      3. Vanessa cardui
   3. Pieris brassicae (Level 4)
3. Caterpillar
4. Bombyx mori (Level 4)
5. Erebidae
6. Fall armyworm
7. Geometer moth (Level 4)
   1. Gonepteryx rhamni
8. Luna moth
9. Lymantria dispar dispar (Level 4)
10. Moth (Level 4)
    1. Clothes moth
    2. Peppered moth
11. Noctuidae
    1. Pachypasa
12. Sphingidae
    1. Acherontia lachesis
    2. Hummingbird hawk-moth
13. Tortricidae

Odonata

This section contains 7 articles.

1. Odonata (Level 4)
2. Damselfly (Level 4)
3. Dragonfly (Level 4)
   1. Libellulidae
      1. Libellula
   2. Emperor dragonfly
   3. Southern hawker

Orthoptera

This section contains 12 articles.

1. Orthoptera (Level 4)
2. Cooloola (insect)
3. Cricket (insect) (Level 4)
4. Grasshopper (Level 4)
   1. Hump-winged grig
5. Mole cricket (Level 4)
6. Locust (Level 4)
7. Tetrigidae
8. Tettigoniidae (Level 4)
9. Wētā
   1. Giant wētā
   2. Rhaphidophoridae

Zygentoma

This section contains 3 articles.

1. Zygentoma
2. Firebrat
3. Silverfish

Arthropoda, others

This section contains 47 articles.

Hexapoda

This section contains 4 articles.

1. Hexapoda (Level 4)
2. Diplura
3. Protura
4. Springtail (Level 4)

Myriapoda

This section contains 12 articles.

1. Myriapoda (Level 4)
2. Centipede (Level 4)
   1. Cryptopidae
   2. Scolopendridae
      1. Scolopendra gigantea
   3. Scutigera coleoptrata
3. Millipede (Level 4)
   1. Archispirostreptus gigas
   2. Julida
   3. Pill millipede
4. Pauropoda
5. Symphyla

Chelicerata

This section contains 16 articles.

1. Chelicerata (Level 4)
2. Sea spider
3. Xiphosura (Level 4)
   1. Horseshoe crab
4. Arachnid (Level 4)
   1. Ricinulei
   2. Opiliones
   3. Solifugae
   4. Parasitiformes
   5. Acariformes
   6. Pseudoscorpion (Level 4)
   7. Scorpion (Level 4)
   8. Amblypygi
   9. Uropygi
   10. Schizomida
   11. Spider (Level 4)

Fossil arthropods

This section contains 15 articles.

1. Arthropleura
2. Canadaspis
3. Dinocaridida
   1. Anomalocaris
   2. Opabinia
   3. Tamisiocarididae
4. Eurypterid (Level 4)
   1. Eurypterus
   2. Jaekelopterus
   3. Megarachne
5. Leanchoilia
6. Meganeura
7. Sidneyia
8. Thylacocephala
9. Trilobite (Level 4)

Mollusks

This section contains 72 articles.

1. Mollusca (Level 3)
2. Aplacophora
3. Chiton
4. Halkieriid
5. Monoplacophora
6. Tusk shell
7. Wiwaxia

Bivalvia

This section contains 17 articles.

1. Bivalvia
2. Clam (Level 4)
   1. Cockle (bivalve)
   2. Ensis
   3. Geoduck
   4. Giant clam
   5. Veneridae
   6. Zebra mussel
3. Mussel (Level 4)
4. Oyster (Level 4)
5. Pinnidae
6. Rudists
7. Scallop (Level 4)
   1. Pecten maximus
8. Shipworm
9. Unionida
   1. Freshwater pearl mussel

Cephalopods

This section contains 19 articles.

1. Cephalopod
2. Ammonoidea
3. Argonaut (animal)
4. Belemnitida
5. Cuttlefish
6. Nautiloid
   1. Nautilus
7. Octopus (Level 4)
   1. Amphioctopus marginatus
   2. Blue-ringed octopus
   3. Common octopus
   4. Giant Pacific octopus
   5. Umbrella octopus
8. Orthoceras
9. Squid (Level 4)
   1. Colossal squid
   2. Giant squid
   3. Vampire squid
10. Spirula

Gastropods

This section contains 29 articles.

1. Gastropoda
2. Slug (Level 4)
   1. Banana slug
3. Sea slug
   1. Aplysiida
   2. Clione limacina
   3. Glaucus atlanticus
   4. Nudibranch
   5. Spanish dancer
4. Snail (Level 4)
5. Freshwater snail
6. Land snail
   1. Achatina
   2. Helicidae
      1. Cornu aspersum
      2. Helix pomatia
   3. Lissachatina fulica
7. Sea snail
   1. Abalone
   2. Charonia
   3. Conch (Level 4)
   4. Cone snail
   5. Cowrie
   6. Limpet
      1. Muricidae
   7. Turrid
   8. Turritellidae
   9. Whelk
   10. Wentletrap

Cnidarians

This section contains 23 articles.

1. Cnidaria (Level 4)
2. Polyp (zoology)
3. Anthozoa
   1. Coral (Level 4)
   2. Alcyonacea
   3. Brain coral
   4. Precious coral
   5. Sea anemone
   6. Sea pen
4. Box jellyfish
   1. Chironex fleckeri
5. Hydrozoa
   1. Hydra (genus)
   2. Portuguese man o' war
   3. Siphonophorae
      1. Praya dubia
   4. Turritopsis dohrnii
6. Jellyfish (Level 4)
   1. Chrysaora fuscescens
   2. Scyphozoa
      1. Aurelia (cnidarian)
      2. Lion's mane jellyfish
7. Myxozoa

Echinoderms

This section contains 15 articles.

1. Echinoderm (Level 4)
2. Crinoid
3. Brittle star
   1. Basket star
4. Sea cucumber (Level 4)
   1. Scotoplanes globosa
   2. Sea apple
5. Sea urchin (Level 4)
   1. Sand dollar
   2. Strongylocentrotus purpuratus
6. Starfish (Level 4)
   1. Crown-of-thorns starfish
   2. Culcita (echinoderm)
   3. Linckia laevigata
   4. Sunflower sea star

Porifera

This section contains 6 articles.

1. Sponge (Level 4)
2. Calcareous sponge
3. Demosponge
   1. Spongia officinalis
4. Hexactinellid
5. Homosclerophorida

Invertebrata, others

This section contains 58 articles.

Cephalochordata

This section contains 1 article.

1. Lancelet

Ecdysozoa

This section contains 14 articles.

1. Ecdysozoa
2. Kinorhyncha
3. Lobopodia
   1. Microdictyon
4. Loricifera
5. Nematode (Level 4)
   1. Ancylostoma
   2. Ascaris lumbricoides
   3. Caenorhabditis elegans (Level 4)
6. Nematomorpha
7. Onychophora
   1. Hallucigenia
8. Priapulida
9. Tardigrade (Level 4)

Spiralia

This section contains 34 articles.

1. Chaetognatha
2. Symbion
3. Dicyemida
4. Entoprocta
5. Gnathostomulid
6. Orthonectida

Lophotrochozoa

This section contains 18 articles.

1. Lophotrochozoa
2. Annelid (Level 4)
   1. Leech (Level 4)
   2. Polychaete (Level 4)
      1. Arenicola
      2. Nereididae
      3. Riftia
   3. Oligochaeta
      1. Earthworm (Level 4)
      2. Giant Gippsland earthworm
   4. Sipuncula
3. Brachiopod
   1. Lingulata
4. Bryozoa (Level 4)
5. Nemertea
6. Ottoia
7. Phoronid
8. Tubifex

Platyzoa

This section contains 10 articles.

1. Flatworm (Level 4)
   1. Turbellaria
   2. Trematoda
   3. Cestoda (Level 4)
      1. Eucestoda
         1. Taenia solium
2. Rotifer
3. Acanthocephala
4. Gastrotrich
5. Limnognathia

Tunicata

This section contains 3 articles.

1. Tunicate
2. Ascidiacea
3. Salp

Other

This section contains 6 articles.

1. Ctenophora
2. Dickinsonia
3. Hemichordate
4. Placozoa
   1. Trichoplax
5. Xenacoelomorpha

Animal behavior

This section contains 6 articles.

Shelters and structures

This section contains 6 articles.

1. Ant colony
2. Beaver dam
3. Beehive
4. Burrow
5. Nest
6. Spider web