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

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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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Total articles: 2,399/2,400

General classifications (13 articles)

1. Archosaur
2. Amniote
3. Arthropod (Level 3)
4. Bilateria (Level 4)
5. Chordate (Level 4)
6. Craniate (Level 4)
7. Deuterostome
8. Gnathostomata (Level 4)
9. Invertebrate (Level 4)
10. Protostome
11. Tetrapod (Level 4)
12. Vertebrate (Level 4)
13. Worm

Animal breeds and hybrids (146 articles)

Cats (24 articles)

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

Cattle (17 articles)

1. Angus cattle
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 cattle (Level 4)
10. Limousin
11. Jersey
12. Simmental
13. Spanish Fighting Bull
14. Texas Longhorn

Miniature cattle (3 articles)

1. Australian Lowline
2. Dexter
3. Vechur

Chickens (5 articles)

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

Dogs (55 articles)

1. Belgian Shepherd
2. Boxer
3. Bulldog
   1. French Bulldog
4. Chihuahua
5. Cocker Spaniel
   1. American Cocker Spaniel
   2. Cavalier King Charles Spaniel
6. Collie
   1. Border Collie
   2. Rough Collie
7. Dachshund (Level 4)
8. Dalmatian
9. Dobermann
10. English Mastiff
11. German Shepherd (Level 4)
12. Great Dane (Level 4)
13. Pyrenean Mountain Dog
14. Gun dog
15. Hound
    1. Beagle (Level 4)
    2. Bloodhound
    3. Greyhound (Level 4)
16. Husky
    1. Siberian Husky
17. Irish Setter
18. Malinois
19. Maltese
20. Mongrel
21. Pit bull
    1. American Pit Bull Terrier
22. Poodle
23. Sheep dog
    1. Maremmano-Abruzzese Sheepdog
    2. Old English Sheepdog
    3. Shetland Sheepdog
24. Shiba Inu
25. Pekingese
26. Pomeranian
27. Pug
28. Retriever (Level 4)
    1. Golden Retriever
    2. Labrador Retriever
29. Rottweiler
30. Shih Tzu (Level 4)
31. St. Bernard
32. Staffordshire Bull Terrier
33. Terrier (Level 4)
    1. Boston Terrier
    2. Jack Russell Terrier
    3. Yorkshire Terrier
34. Weimaraner
35. Welsh Corgi
    1. Cardigan Welsh Corgi
    2. Pembroke Welsh Corgi

Donkeys (4 articles)

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

Goats (5 articles)

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

Horses (10 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. Thoroughbred (Level 4)
9. Pony (Level 4)
   1. Shetland pony

Hybrids (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 (3 articles)

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

Pigs (3 articles)

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

Rabbits (5 articles)

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

Sheep (5 articles)

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

Turkeys (2 articles)

1. Broad Breasted White turkey
2. Norfolk Black

Individual animals (94 articles)

Apes (9 articles)

1. Bubbles
2. Crystal the Monkey
3. Ham
4. Killing of Harambe
5. Jiggs
6. J. Fred Muggs
7. Koko
8. Oliver
9. Travis

Bears (7 articles)

1. Bruno
2. Bart the Bear
3. Bart the Bear 2
4. Brody the Bear
5. Hercules
6. Pedals
7. Winnipeg

Cats (7 articles)

1. Elsa the lioness
2. Grumpy Cat
3. Lil Bub
4. Killing of Cecil the lion
5. Maru
6. Mike the Tiger
7. Morris the Cat

Cattle (12 articles)

Bucking bulls (7 articles)

1. Bodacious
2. Bushwacker
3. Bruiser
4. Dillinger
5. Little Yellow Jacket
6. Oscar
7. Red Rock

Celebrity cows (5 articles)

1. Big Bertha
2. Brookview Tony Charity
3. Lily Flagg
4. Ralphie the Buffalo
5. Ratón

Cetaceans (6 articles)

1. Hope
2. Keiko
3. Lolita
4. Shamu
5. Tilikum
6. Winter

Dogs (9 articles)

1. Balto
2. Blondi
3. Chaser
4. Hachikō
5. Laika
6. Pal
7. Rin Tin Tin
8. Terry
9. Uga

Elephants (2 articles)

1. Jumbo
2. Topsy

Horses (33 articles)

Racehorses (26 articles)

1. Black Caviar
2. Byerley Turk
3. Citation
4. Darley Arabian
5. Eclipse
6. Frankel
7. Godolphin Arabian
8. Kelso
9. Kincsem
10. Man o' War
11. Native Dancer
12. Nearco
13. Northern Dancer
14. Phar Lap
15. Pretty Polly
16. Seabiscuit
17. Secretariat
18. Sunday Silence
19. Zenyatta

Other racing types (7 articles)

1. Arkle
2. Dan Patch
3. Desert Orchid
4. Figure
5. Golden Miller
6. Hambletonian 10
7. Red Rum

Other (7 articles)

1. Bamboo Harvester
2. Bucephalus
3. Incitatus
4. Marengo
5. Midnight
6. Scamper
7. Trigger

Miscellaneous (9 articles)

1. Andre the Seal
2. Bei Bei
3. Cher Ami
4. Dolly
5. Jimmy the raven
6. Lonesome George
7. Number 16
8. Punxsutawney Phil
9. Tuan Tuan and Yuan Yuan

Mammals (541 articles)

General (21 articles)

1. Mammal (Level 3)
2. Astrapotherium
3. Colugo
4. Hyaenodon
5. Macrauchenia
6. Marine mammal
7. Pangolin (Level 4)
8. Pantodonta
9. Taeniodonta
10. Toxodon
11. Treeshrew
12. Uintatherium
13. Ungulate

Stem-mammals (8 articles)

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

Afrotheria (26 articles)

Proboscidea (14 articles)

1. Proboscidea (Level 4)
   1. Deinotherium
   2. Elephant (Level 4)
      1. African bush elephant
      2. African bush elephant
      3. Asian elephant
      4. Dwarf elephant
   3. Gomphothere
   4. Mammoth (Level 4)
      1. Columbian mammoth
      2. Woolly mammoth
   5. Mastodon
   6. Moeritherium
   7. Platybelodon

Sirenia (4 articles)

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

Other afrotheres (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 (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 (126 articles)

General (1 article)

1. Carnivora (Level 4)

Bears (14 articles)

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

Canines (20 articles)

1. African wild dog
2. Bat-eared fox
3. Bush dog
4. Canidae (Level 4)
5. Coyote (Level 4)
6. Dhole
7. Dire wolf
8. Dog (Level 3)
   1. Dingo
9. Falkland Islands wolf
10. Fox (Level 4)
    1. Vulpes
       1. Red fox
       2. Fennec fox
11. Jackal (Level 4)
12. Maned wolf
13. Raccoon dog
14. South American fox
15. Wolf (Level 4)
    1. Ethiopian wolf

Felines (34 articles)

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

Panthera (17 articles)

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

Mustelidae (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 (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 (7 articles)

1. Procyonidae (Level 4)
2. Bassaricyon
3. Cacomistle
4. Coati
5. Kinkajou
6. Raccoon
7. Ring-tailed cat

Other carnivora (16 articles)

1. Fossa
2. Hyena (Level 4)
   1. Aardwolf
   2. Cave hyena
3. Mongoose (Level 4)
   1. Egyptian mongoose
   2. Meerkat
4. Red panda
5. Skunk (Level 4)
   1. Spotted skunk
6. Viverridae
   1. African civet
   2. Asiatic linsang
   3. Banded palm civet
   4. Binturong
   5. Genet

Eulipotyphla (10 articles)

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

Even-toed ungulates and cetaceans (141 articles)

1. Even-toed ungulate (Level 4)
2. Ruminantia

Bovidae (44 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 (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. Pelorovis
12. Serow
13. Sheep (Level 4)
    1. Barbary sheep
    2. Bighorn sheep
    3. Dall sheep
14. Tahr
15. Takin
16. Water buffalo (Level 4)
    1. Wild water buffalo
17. Yak (Level 4)
    1. Wild yak

Bison (3 articles)

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

Camelidae (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 (41 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 (8 articles)

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

Toothed whale (24 articles)

1. Toothed whale
2. Beaked whale
   1. Mesoplodont whale
3. Beluga whale
4. Dolphin (Level 4)
   1. Oceanic dolphin
   2. Bottlenose dolphin
      1. False killer whale
      2. Killer whale (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 (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. Pudú

1. Reindeer (Level 4)
2. Roe deer
3. Water deer
4. White-tailed deer

Giraffidae (8 articles)

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

Pigs (9 articles)

1. Pig
2. Babirusa
3. Bornean bearded pig
4. Warthog
5. Domestic pig (Level 4)
6. Kubanochoerus
7. Peccary (Level 4)
8. Red river hog
9. Wild boar (Level 4)

Other even-toed ongulates (11 articles)

1. Andrewsarchus
2. Anthracotheriidae
3. Chevrotain
4. Cranioceras
5. Entelodont
   1. Daeodon
6. Hippopotamus (Level 4)
   1. Pygmy hippopotamus
7. Musk deer
8. Pronghorn (Level 4)
9. Synthetoceras

Lagomorphs (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 (39 articles)

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

Diprotodontia (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 (3 articles)

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

Odd-toed ungulates (32 articles)

1. Odd-toed ungulate (Level 4)
2. Brontotheriidae
   1. Megacerops
3. Chalicotherium
4. Palaeotherium
5. Paraceratherium
6. 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 (15 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. Horse (Level 3)
   1. Feral horse
   2. Przewalski's horse
   3. Tarpan
5. Zebra (Level 4)
   1. Grévy's zebra
   2. Mountain zebra
   3. Plains zebra

Primates (61 articles)

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

Apes (19 articles)

1. Ape (Level 4)
   1. Gigantopithecus
   2. Proconsul
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 (Level 4)
   1. Chimpanzee (Level 4)
   2. Bonobo (Level 4)
6. Human (Level 1)

New World monkeys (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 (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. Gray langur
   3. Proboscis monkey

Strepsirrhini (11 articles)

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

Other primates (2 articles)

1. Purgatorius
2. Tarsier (Level 4)

Rodents (53 articles)

1. Rodent (Level 3)
2. Agouti
3. Blesmol
4. Capybara (Level 4)
5. Coypu (Level 4)
6. Beaver (Level 4)
   1. Castoroides
7. Chinchilla
8. Dipodidae
   1. 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. 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
19. Muskrat (Level 4)
20. Naked mole-rat
21. Octodon
22. Porcupine (Level 4)
    1. Old World porcupine
    2. Prehensile-tailed porcupine
23. Spalax
24. Spermophilus
25. 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
26. Viscacha
27. Vole

Xenarthra (10 articles)

1. Anteater (Level 4)
   1. Giant anteater
   2. Tamandua
2. Armadillo (Level 4)
   1. Doedicurus
   2. Giant armadillo
3. Sloth (Level 4)
   1. Ground sloth
      1. Megatherium
   2. Thalassocnus

Birds (384 articles)

Basics (13 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. Tinamou (Level 4)
13. Tropicbird

Accipitrimorphae (28 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
   9. Haast's 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 (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
      1. Domestic goose
      2. Greylag goose
      3. Swan goose
      4. Snow goose
   2. Branta
      1. Canada goose
      2. Nene
4. Magpie goose
5. Moa-nalo
6. Muscovy duck
7. Screamer
8. Shelduck
9. Swan (Level 4)
   1. Black swan
10. Whistling duck

Apodiformes (8 articles)

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

Caprimulgiformes and related (6 articles)

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

Charadriiformes (32 articles)

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

Ciconiiformes (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 (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 (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 (10 articles)

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

Galliformes (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 4)
15. Tragopan
16. Turkey
    1. Domestic turkey (Level 4)
    2. Ocellated turkey
    3. Wild turkey

Pheasants (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 (5 articles)

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

Gruiformes (17 articles)

1. Gruiformes (Level 4)
2. Crane (Level 4)
   1. Antigone
   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 (Level 4)
   1. Coot
   2. Moorhen
   3. Swamphen
      1. South Island takahē
8. Sunbittern

Passerines (84 articles)

General (2 articles)

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

Corvoidea (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
   3. Eurasian magpie (Level 4)
   4. Jay
   5. Western jackdaw
4. Honeyeater (Level 4)
5. Lyrebird (Level 4)
6. Shrike (Level 4)

Passerida (60 articles)

1. Accentor
2. Atlantic canary
   1. Domestic canary
3. Australian magpie
4. Bulbul (Level 4)
5. Bunting (Level 4)
6. Cardinal (Level 4)
7. Crossbill
8. Dipper
9. Drongo
10. Estrildid finches
    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
    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. House martin
33. Tanager
    1. Darwin's finches
34. Tit (Level 4)
35. Thrush (Level 4)
    1. American robin (Level 4)
36. Vireo
37. Wallcreeper
38. Waxwing
39. White-eye
40. Wren (Level 4)

Tyranni (6 articles)

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

Pelecaniformes (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 (9 articles)

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

Procellariiformes (6 articles)

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

Psittaciformes (17 articles)

1. Cockatoo (Level 4)
   1. Cockatiel
   2. Gang-gang cockatoo
2. New Zealand parrot
   1. Kakapo
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 (Level 4)
   8. Parakeet
   9. Rainbow lorikeet
   10. Rosella

Ratites (7 articles)

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

Sphenisciformes (5 articles)

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

Strigiformes (8 articles)

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

Trogoniformes (2 articles)

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

Prehistoric birds (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 (286 articles)

General (6 articles)

1. Reptile (Level 3)
2. Sauropsida
3. Sauria
4. Squamata
   1. Amphisbaenia
      1. Rhineuridae

Crocodilia (14 articles)

1. Crocodilia (Level 4)
2. Alligator (Level 4)
   1. American alligator
   2. Chinese alligator
3. Caiman (Level 4)
   1. Black 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 (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
   2. Viviparous lizard
6. Legless lizard
   1. Glass lizard
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 (18 articles)

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

Rhynchocephalia (2 articles)

1. Rhynchocephalia
   1. Tuatara (Level 4)

Snakes (42 articles)

1. Snake (Level 4)
2. Boidae (Level 4)
   1. Anaconda
   2. Boa constrictor
3. Colubridae
   1. Ahaetulla
   2. Boomslang
   3. Bungarus
   4. Chrysopelea
   5. Corn snake
   6. Garter snake (Level 4)
   7. Grass snake
   8. Kingsnake
4. Elapidae
   1. Cobra
      1. King cobra
      2. Naja (Level 4)
      3. Rinkhals
   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
      1. Ball python
      2. Reticulated python
6. Scolecophidia
7. Viperidae
   1. Pit viper
      1. Agkistrodon piscivorus (Level 4)
      2. Eastern copperhead (Level 4)
   2. Rattlesnake (Level 4)
   3. Vipera berus (Level 4)
8. Xenopeltis

Turtles (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
11. Trionychidae
12. Wood turtle

Prehistoric archosaurs (126 articles)

Dinosaurs (88 articles)

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

Ornitischians (33 articles)

1. Ornithischia

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

Sauropods (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 (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 (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 (23 articles)

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

Prehistoric crocodiles (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 (45 articles)

1. Champsosaurus
2. Drepanosaur
3. Hovasaurus
4. Hylonomus
5. Longisquama
6. Pleurosauridae
7. Rhynchosaur
8. Sharovipteryx
9. Shringasaurus
10. Thalattosauria
11. Tanystropheus

Parareptilia (4 articles)

1. Parareptilia
   1. Bolosauridae
   2. Pareiasaur
      1. Scutosaurus

Prehistoric squamates (8 articles)

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

Prehistoric turtles (4 articles)

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

Prehistoric marine reptiles (18 articles)

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

Proto-mammals (18 articles)

1. Synapsid (Level 4)
   1. Cotylorhynchus
2. Pelycosaur
   1. Dimetrodon (Level 4)
   2. Edaphosaurus
3. Therapsid
   1. Burnetia
   2. Cynodont
      1. Thrinaxodon
   3. Dicynodont
      1. Lystrosaurus
      2. Placerias
   4. Dinocephalia
      1. Moschops
   5. Gorgonopsia
      1. Gorgonops
      2. Inostrancevia
   6. Therocephalia

Reptiliomorphs (3 articles)

1. Reptiliomorpha
   1. Diadectes
   2. Seymouria

Amphibians (55 articles)

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

Frogs and toads (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
    2. Rana
    3. Wood frog
18. Tree frog
19. Xenopus

Salamanders and newts (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 (10 articles)

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

Fishes (298 articles)

General (16 articles)

1. Fish (Level 3)
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)

Fish by habitat (6 articles)

1. Coldwater fish
2. Coral reef fish (Level 4)
3. Deep sea fish (Level 4)
4. Demersal fish
5. Pelagic fish
6. Tropical fish

Chondrichthyes (46 articles)

Batoidea (13 articles)

1. Batoidea (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 (Level 4)
6. Stingray (Level 4)
   1. Whiptail stingray
   2. Potamotrygonidae

Chimaeriformes (4 articles)

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

Sharks (29 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. Catshark
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. 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 (221 articles)

1. John Dory
2. Tarpon

Acipenseriformes (3 articles)

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

Anguilliformes (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 (3 articles)

1. Bathypterois grallator
2. Lancetfish
3. Synodontidae

Beloniformes (7 articles)

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

Characiformes (8 articles)

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

Clupeiformes (9 articles)

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

Cypriniformes (15 articles)

1. Cypriniformes (Level 4)
2. Loach
   1. Misgurnus fossilis
3. Cyprinidae (Level 4)
   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 (5 articles)

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

Esociformes (4 articles)

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

Gadiformes (9 articles)

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

Gasterosteiformes (3 articles)

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

Gonorynchiformes (2 articles)

1. Gonorynchiformes
2. Milkfish (Level 4)

Gymnotiformes (5 articles)

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

Holosteans (2 articles)

1. Gar
2. Bowfin

Lampriformes (5 articles)

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

Lophiiformes (8 articles)

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

Mugiliformes (2 articles)

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

Myctophiformes (2 articles)

1. Myctophiformes
2. Lanternfish

Ophidiiformes (4 articles)

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

Osmeriformes and relatives (3 articles)

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

Osteoglossiformes (5 articles)

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

Perciformes (61 articles)

1. Perciformes (Level 4)
2. Acanthuridae
   1. Paracanthurus
3. Amphiprioninae
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)
24. Pumpkinseed
25. Pomacanthidae
    1. Emperor angelfish
26. Platax
27. Priacanthidae
28. Prowfish
29. Rabbitfish
30. Remora (Level 4)
31. Red mullet
32. Scombridae
    1. Bonito
    2. Mackerel (Level 4)
    3. Spanish mackerel
    4. Tuna (Level 4)
       1. Pacific bluefin tuna
       2. Skipjack tuna
33. Serranidae (Level 4)
    1. Anthias anthias
    2. European bass (Level 4)
    3. Grouper (Level 4)
34. Sparidae
35. Tilefish
36. Weever
37. Wrasse (Level 4)
    1. Humphead wrasse

Pleuronectiformes (6 articles)

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

Polypteriformes (2 articles)

1. Bichir (Level 4)
2. Reedfish

Salmoniformes (5 articles)

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

Scorpaeniformes (7 articles)

1. Scorpaeniformes (Level 4)
   1. Flathead
2. Psychrolutes marcidus
3. Pterois
4. Sebastidae
5. Scorpaenidae
6. Triglidae

Siluriformes (4 articles)

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

Stomiiformes (4 articles)

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

Syngnathiformes (7 articles)

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

Tetraodontiformes (8 articles)

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

Trachichthyiformes (2 articles)

1. Anomalopidae
2. Slimehead

Prehistoric fish (15 articles)

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

Prehistoric chondrichthyans (6 articles)

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

Prehistoric osteichthyans (6 articles)

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

Agnatha (17 articles)

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

Prehistoric agnathae and early chordates (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 (85 articles)

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

Malacostraca (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 (61 articles)

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

Crabs and hermit crabs (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 (13 articles)

1. Crayfish
   1. Astacus astacus (Level 4)
   2. Blue crayfish
   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 (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 (53 articles)

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

Scorpions (6 articles)

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

Spiders (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
      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 (5 articles)

1. Attercopus
2. Brontoscorpio
3. Phalangiotarbi
4. Plesiosiro
5. Trigonotarbida

Insects (196 articles)

General (41 articles)

1. Insect (Level 3)
   1. Pterygota (Level 4)
2. Caddisfly
3. Cockroach (Level 4)
   1. American cockroach
   2. German cockroach
   3. Madagascar hissing cockroach
4. Earwig (Level 4)
5. Embioptera
6. Flea (Level 4)
   1. Cat flea
   2. Dog flea
   3. Oriental rat flea
7. Louse (Level 4)
   1. Body louse (Level 4)
   2. Crab louse
   3. Head louse
8. Mantis (Level 4)
   1. Dead leaf mantis
   2. Empusidae
   3. Flower mantis
   4. Shield mantis
   5. Stick mantis
9. Mantophasmatidae
10. Mayfly
11. Mecoptera
12. Neuroptera
    1. Antlion
13. Phasmatodea (Level 4)
    1. Common walkingstick
    2. Heteropteryx
    3. Phylliidae
    4. Timema
14. Plecoptera
15. Psocoptera
16. Strepsiptera
17. Termite (Level 4)
    1. Coptotermes gestroi
    2. Formosan subterranean termite
    3. Macrotermes bellicosus
18. Thrips

Beetles (Coleoptera) (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

Flies (Diptera) (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. Horse-fly (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) (27 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. Leafhopper (Level 4)
10. Lygaeidae
11. Nepomorpha
    1. Belostomatidae
    2. Corixidae
    3. Notonectidae
    4. Ranatra
12. Pentatomoidea
13. Planthopper
14. Pyrrhocoris apterus
15. Reduviidae
16. Saldidae
17. Scale insect (Level 4)
18. Treehopper
19. Veliidae
20. Whitefly (Level 4)

Hymenoptera (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
   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 (26 articles)

1. Lepidoptera (Level 4)
2. Butterfly (Level 4)
   1. Swallowtail butterfly (Level 4)
      1. Birdwing
   2. Nymphalidae
      1. Monarch butterfly
      2. Morpho
      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. 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 (7 articles)

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

Orthoptera (12 articles)

1. Orthoptera (Level 4)
2. Cooloola
3. Cricket (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 (2 articles)

1. Firebrat
2. Silverfish

Arthropoda, others (36 articles)

Hexapoda (4 articles)

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

Myriapoda (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 (4 articles)

1. Chelicerata (Level 4)
2. Sea spider
3. Xiphosura (Level 4)
   1. Horseshoe crab

Fossil arthropods (16 articles)

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

Mollusks (70 articles)

1. Mollusca (Level 4)
2. Chiton
3. Halkieriid
4. Tusk shell
5. Wiwaxia

Bivalvia (18 articles)

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

Cephalopods (19 articles)

1. Cephalopod
2. Ammonoidea
3. Argonaut
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
   6. Orthoceras
8. Squid (Level 4)
   1. Colossal squid
   2. Giant squid
   3. Vampire squid
9. Spirula

Gastropods (28 articles)

1. Gastropoda
2. Slug (Level 4)
   1. Banana slug
3. Sea slug
   1. Anaspidea
   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
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 (22 articles)

1. Cnidaria (Level 4)
2. Polyp
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
   2. Portuguese man o' war
   3. Siphonophorae
      1. Praya dubia
6. Jellyfish (Level 4)
   1. Aurelia
   2. Chrysaora fuscescens
   3. Lion's mane jellyfish
   4. Turritopsis dohrnii
7. Myxozoa

Echinoderms (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
   3. Linckia laevigata
   4. Sunflower sea star

Porifera (5 articles)

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

Invertebrata, others (51 articles)

Cephalochordata (1 article)

1. Lancelet

Ecdysozoa (10 articles)

1. Ecdysozoa
2. Lobopodia
   1. Microdictyon
3. Nematode (Level 4)
   1. Ascaris lumbricoides
   2. Caenorhabditis elegans (Level 4)
4. Nematomorpha
5. Onychophora
   1. Hallucigenia
6. Tardigrade (Level 4)

Lophotrochozoa (17 articles)

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

Platyzoa (11 articles)

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

Tunicata (3 articles)

1. Tunicate
2. Ascidiacea
3. Salp

Other (9 articles)

1. Xenacoelomorpha
2. Placozoa
   1. Trichoplax
3. Ctenophora
4. Chaetognatha
5. Dickinsonia
6. Hemichordate
7. Kinorhyncha
8. Priapulida
9. Sipuncula