Browse the animal kingdom

Every major group of animals, largest first. Open one to see what is inside it, and keep opening until you find what you came for — or use the search box, which is quicker if you already know the name.

Arthropods Arthropoda 610,348
- Insects Insecta 510,190
  - Butterflies and Moths Lepidoptera 166,080
  - Beetles Coleoptera 134,573
  - Ants, Bees, Wasps and Sawflies Hymenoptera 58,012
  - Flies Diptera 46,536
  - True Bugs Hemiptera 45,786
  - Grasshoppers, Crickets and Katydids Orthoptera 24,499
  - Dragonflies and Damselflies Odonata 6,497
  - Cockroaches and Termites Blattodea 3,817
  - Stoneflies Plecoptera 3,596
  - Stick and Leaf Insects Phasmida 3,565
  - Lacewings and Antlions Neuroptera 3,048
  - Caddisflies Trichoptera 2,979
  - Mantises Mantodea 2,594
  - Booklice, Barklice and Parasitic Lice Psocodea 1,980
  - Mayflies Ephemeroptera 1,810
  - Thrips Thysanoptera 1,366
  - Earwigs Dermaptera 796
  - Scorpionflies Mecoptera 564
  - Webspinners Embioptera 445
  - Alderflies and Dobsonflies Megaloptera 408
  - Siphonaptera 366
  - Silverfish Zygentoma 266
  - Archaeognatha 226
  - Strepsiptera 194
  - Raphidioptera 82
  - Notoptera 55
  - Zoraptera 50
- Arachnids Arachnida 69,522
  - Spiders Araneae 49,744
  - Harvestmen Opiliones 6,431
  - Trombidiform Mites Trombidiformes 3,388
  - Sarcoptiform Mites Sarcoptiformes 3,015
  - Scorpions Scorpiones 2,453
  - Mesostigmatid Mites Mesostigmata 1,629
  - Pseudoscorpiones 1,040
  - Solifugae 795
  - Ixodida 475
  - Amblypygi 223
  - Schizomida 148
  - Uropygi 119
  - Palpigradi 25
  - Ricinulei 25
  - Holothyrida 8
  - Opilioacarida 4
- Malacostracans Malacostraca 17,149
  - Crabs, Lobsters and Shrimps Decapoda 9,525
  - Isopods Isopoda 4,074
  - Amphipods Amphipoda 2,709
  - Cumacea 240
  - Stomatopoda 194
  - Mysida 157
  - Tanaidacea 104
  - Euphausiacea 76
  - Leptostraca 12
  - Thermosbaenacea 12
  - Anaspidacea 11
  - Ingolfiellida 9
  - Stygiomysida 9
  - Lophogastrida 8
  - Bathynellacea 3
  - Bochusacea 2
  - Spelaeogriphacea 2
  - Canadaspidida 1
  - Mictacea 1
- Millipedes Diplopoda 4,010
  - Polydesmida 1,689
  - Chordeumatida 498
  - Spirostreptida 491
  - Julida 375
  - Spirobolida 348
  - Sphaerotheriida 151
  - Glomerida 134
  - Polyxenida 64
  - Stemmiulida 61
  - Callipodida 59
  - Polyzoniida 59
  - Platydesmida 36
  - Glomeridesmida 22
  - Siphonophorida 19
  - Siphonocryptida 3
  - Siphoniulida 1
- Springtails and Relatives Entognatha 3,020
  - Elongate-bodied Springtails Entomobryomorpha 1,242
  - Poduromorpha 849
  - Symphypleona 413
  - Diplura 362
  - Protura 134
  - Neelipleona 20
- Copepods and Barnacles Hexanauplia 2,114
  - Cyclopoida 548
  - Calanoida 542
  - Siphonostomatoida 346
  - Harpacticoida 326
  - Balanomorpha 215
  - Scalpellomorpha 60
  - Monstrilloida 13
  - Platycopioida 11
  - Calanticomorpha 10
  - Pollicipedomorpha 8
  - Verrucomorpha 7
  - Misophrioida 6
  - Polyarthra 5
  - Lithoglyptida 4
  - Cryptophialida 3
  - Mormonilloida 3
  - Dendrogastrida 2
  - Gelyelloida 2
  - Iblomorpha 2
  - Laurida 1
- Sea Spiders Pycnogonida 1,326
  - Sea Spiders Pantopoda 1,326
- Centipedes Chilopoda 1,247
  - Geophilomorpha 470
  - Lithobiomorpha 392
  - Scolopendromorpha 347
  - Scutigeromorpha 36
  - Craterostigmomorpha 2
- Branchiopods Branchiopoda 878
  - Anomopoda 431
  - Anostraca 207
  - Spinicaudata 147
  - Ctenopoda 28
  - Notostraca 28
  - Laevicaudata 18
  - Onychopoda 16
  - Haplopoda 2
  - Cyclestherida 1
- Seed Shrimps Ostracoda 647
  - Podocopida 477
  - Myodocopida 125
  - Halocyprida 39
  - Platycopida 6
- Trilobites Trilobita 98
  - Phacopida 30
  - Asaphida 25
  - Corynexochida 19
  - Ptychopariida 12
  - Agnostida 6
  - Redlichiida 3
  - Proetida 2
  - Harpetida 1
- Pauropods Pauropoda 76
  - Tetramerocerata 70
  - Hexamerocerata 6
- Fish Lice and Relatives Ichthyostraca 40
  - Arguloida 34
  - Porocephalida 3
  - Raillietiellida 2
  - Cephalobaenida 1
- Remipedes Remipedia 19
  - Nectiopoda 19
- Radiodonts Dinocaridida 7
  - Radiodonta 7
- Horseshoe Crabs Merostomata 4
  - Xiphosurida 4
- Horseshoe Shrimps Cephalocarida 1
  - Brachypoda 1
Chordates Chordata 79,931
- Ray-finned Fishes Actinopterygii 35,717
  - Carps, Minnows and Loaches Cypriniformes 4,929
  - Catfishes Siluriformes 4,287
  - Perch-like Fishes Perciformes 3,280
  - Gobies Gobiiformes 2,839
  - Characins Characiformes 2,387
  - Blennies Blenniiformes 1,952
  - Cichlids Cichliformes 1,764
  - Surgeonfishes and Allies Acanthuriformes 1,572
  - Killifishes and Livebearers Cyprinodontiformes 1,489
  - Jacks and Flatfishes Carangiformes 1,103
  - Eels Anguilliformes 1,077
  - Wrasses and Parrotfishes Labriformes 896
  - Syngnathiformes 694
  - Gadiformes 627
  - Ophidiiformes 573
  - Stomiiformes 464
  - Clupeiformes 454
  - Tetraodontiformes 433
  - Lophiiformes 413
  - Atheriniformes 392
  - Acropomatiformes 311
  - Centrarchiformes 306
  - Beloniformes 301
  - Aulopiformes 298
  - Scombriformes 290
  - Anabantiformes 278
  - Salmon and Trout Salmoniformes 276
  - Gymnotiformes 275
  - Myctophiformes 260
  - Osteoglossiformes 255
  - Beryciformes 214
  - Alepocephaliformes 143
  - Synbranchiformes 141
  - Mugiliformes 128
  - Argentiniformes 99
  - Batrachoidiformes 84
  - Trachichthyiformes 73
  - Galaxiiformes 66
  - Smelts Osmeriformes 42
  - Gonorynchiformes 41
  - Zeiformes 34
  - Lampriformes 30
  - Acipenseriformes 29
  - Notacanthiformes 29
  - Percopsiformes 16
  - Polypteriformes 14
  - Albuliformes 13
  - Polymixiiformes 13
  - Ateleopodiformes 11
  - Elopiformes 9
  - Lepisosteiformes 7
  - Amiiformes 2
  - Hiodontiformes 2
  - Aspidorhynchiformes 1
  - Lepidogalaxiiformes 1
- Reptiles Reptilia 12,368
  - Lizards and Snakes Squamata 11,968
  - Turtles and Tortoises Testudines 370
  - Crocodilians Crocodylia 28
  - Plesiosauria 1
  - Rhynchocephalia 1
- Birds Aves 11,363
  - Perching Birds Passeriformes 6,752
  - Swifts and Hummingbirds Apodiformes 477
  - Woodpeckers and Allies Piciformes 439
  - Parrots Psittaciformes 415
  - Shorebirds, Gulls and Auks Charadriiformes 400
  - Pigeons and Doves Columbiformes 367
  - Landfowl Galliformes 314
  - Hawks, Eagles and Vultures Accipitriformes 261
  - Owls Strigiformes 261
  - Cranes, Rails and Allies Gruiformes 225
  - Waterfowl Anseriformes 199
  - Kingfishers and Allies Coraciiformes 185
  - Cuckoos Cuculiformes 157
  - Albatrosses and Petrels Procellariiformes 154
  - Pelicans, Herons and Ibises Pelecaniformes 125
  - Nightjars Caprimulgiformes 99
  - Hornbills and Hoopoes Bucerotiformes 75
  - Falcons Falconiformes 69
  - Gannets, Cormorants and Frigatebirds Suliformes 55
  - Tinamiformes 47
  - Trogons Trogoniformes 47
  - Otidiformes 26
  - Storks Ciconiiformes 23
  - Musophagiformes 23
  - Grebes Podicipediformes 22
  - Penguins Sphenisciformes 20
  - Podargiformes 16
  - Pterocliformes 16
  - Aegotheliformes 11
  - Cathartiformes 11
  - Dinornithiformes 9
  - Flamingos Phoenicopteriformes 8
  - Aepyornithiformes 7
  - Nyctibiiformes 7
  - Coliiformes 6
  - Apterygiformes 5
  - Casuariiformes 5
  - Loons Gaviiformes 5
  - Ostriches Struthioniformes 4
  - Eurypygiformes 3
  - Mesitornithiformes 3
  - Phaethontiformes 3
  - Cariamiformes 2
  - Rheas Rheiformes 2
  - Leptosomiformes 1
  - Opisthocomiformes 1
  - Steatornithiformes 1
- Amphibians Amphibia 8,965
  - Frogs and Toads Anura 7,883
  - Salamanders and Newts Caudata 850
  - Gymnophiona 232
- Mammals Mammalia 6,868
  - Rodents Rodentia 2,757
  - Bats Chiroptera 1,494
  - Shrews, Moles and Hedgehogs Eulipotyphla 603
  - Primates Primates 548
  - Even-toed Ungulates Artiodactyla 383
  - Carnivorans Carnivora 333
  - Kangaroos, Possums and Koalas Diprotodontia 158
  - American Opossums Didelphimorphia 131
  - Rabbits, Hares and Pikas Lagomorpha 112
  - Carnivorous Marsupials Dasyuromorphia 92
  - Tenrecs and Golden Moles Afrosoricida 55
  - Peramelemorphia 31
  - Anteaters and Sloths Pilosa 28
  - Armadillos Cingulata 27
  - Scandentia 23
  - Macroscelidea 20
  - Odd-toed Ungulates Perissodactyla 20
  - Elephants Proboscidea 14
  - Pangolins Pholidota 9
  - Paucituberculata 7
  - Hyraxes Hyracoidea 6
  - Monotremes Monotremata 5
  - Manatees and Dugongs Sirenia 5
  - Dermoptera 2
  - Microbiotheria 2
  - Marsupial Moles Notoryctemorphia 2
  - Tubulidentata 1
- Sea Squirts Ascidiacea 2,955
  - Colonial Sea Squirts Aplousobranchia 1,566
  - Solitary Sea Squirts Stolidobranchia 1,049
  - Phlebobranchia 340
- Cartilaginous Fishes Chondrichthyes 1,326
  - Carcharhiniformes 303
  - Rajiformes 303
  - Myliobatiformes 252
  - Squaliformes 143
  - Rhinopristiformes 71
  - Torpediniformes 68
  - Chimaeriformes 59
  - Orectolobiformes 46
  - Squatiniformes 24
  - Lamniformes 18
  - Heterodontiformes 10
  - Pristiophoriformes 10
  - Sclerorhynchiformes 10
  - Hexanchiformes 7
  - Echinorhiniformes 2
- Hagfishes Myxini 89
  - Myxiniformes 89
- Salps and Pyrosomes Thaliacea 78
  - Salpida 45
  - Doliolida 24
  - Pyrosomatida 9
- Non-avian Dinosaurs Dinosauria 71
  - Theropoda 27
  - Sauropodomorpha 19
  - Cerapoda 18
  - Thyreophora 6
  - Herrerasauria 1
- Larvaceans Appendicularia 70
  - Copelata 70
- Lampreys Petromyzonti 50
  - Petromyzontiformes 50
- Lobe-finned Fishes Sarcopterygii 8
  - Ceratodontiformes 6
  - Coelacanthiformes 2
- Placoderms Placodermi 3
  - Arthrodiriformes 3
Molluscs Mollusca 43,356
- Snails and Slugs Gastropoda 32,742
  - Land Snails and Slugs Stylommatophora 10,308
  - Periwinkles and Allies Littorinimorpha 7,368
  - Whelks, Cones and Allies Neogastropoda 5,103
  - Nudibranchs Nudibranchia 2,593
  - Top Snails Trochida 1,930
  - Land and Freshwater Snails Architaenioglossa 1,490
  - Lepetellida 823
  - Cephalaspidea 722
  - Cycloneritida 626
  - Seguenziida 491
  - Nacellida 291
  - Ellobiida 181
  - Systellommatophora 137
  - Pteropoda 122
  - Siphonariida 119
  - Pleurobranchida 92
  - Aplysiida 90
  - Runcinida 68
  - Cocculinida 52
  - Neomphalida 48
  - Patellida 47
  - Pleurotomariida 33
  - Umbraculida 8
- Bivalves Bivalvia 8,054
  - Venus Clams Venerida 1,340
  - Cockles and Tellins Cardiida 1,090
  - Freshwater Mussels Unionida 899
  - Pectinida 588
  - Arcida 586
  - Galeommatida 477
  - Nuculanida 461
  - Lucinida 409
  - Mytilida 395
  - Carditida 366
  - Myida 329
  - Ostreida 303
  - Limida 204
  - Sphaeriida 179
  - Nuculida 159
  - Adapedonta 149
  - Solemyida 32
  - Gastrochaenida 29
  - Trigoniida 27
  - Manzanellida 21
  - Myalinida 8
  - Actinodontida 1
  - Hippuritida 1
  - Megalodontida 1
- Chitons Polyplacophora 964
  - Chitonida 750
  - Lepidopleurida 165
  - Callochitonida 49
- Cephalopods Cephalopoda 883
  - Octopoda 308
  - Oegopsida 249
  - Sepiida 118
  - Sepiolida 85
  - Myopsida 48
  - Ammonitida 16
  - Goniatitida 10
  - Nautilida 10
  - Bathyteuthida 9
  - Ancyloceratida 8
  - Idiosepida 8
  - Actinoceratida 7
  - Vampyromorpha 2
  - Belemnitida 1
  - Ceratitida 1
  - Clymeniida 1
  - Orthoceratida 1
  - Spirulida 1
- Tusk Shells Scaphopoda 548
  - Dentaliida 288
  - Gadilida 260
- Caudofoveates Caudofoveata 135
  - Chaetodermatida 135
- Monoplacophorans Monoplacophora 30
  - Neopilinida 30
Echinoderms Echinodermata 6,966
- Brittle Stars Ophiuroidea 1,864
  - Amphilepidida 888
  - Ophiacanthida 478
  - Ophiurida 273
  - Euryalida 146
  - Ophioscolecida 58
  - Ophioleucida 21
- Sea Stars Asteroidea 1,841
  - Valvatida 766
  - Paxillosida 425
  - Forcipulatida 265
  - Velatida 141
  - Spinulosida 135
  - Brisingida 106
  - Peripodida 3
- Sea Cucumbers Holothuroidea 1,654
  - Dendrochirotida 728
  - Apodida 300
  - Holothuriida 225
  - Elasipodida 145
  - Synallactida 124
  - Molpadida 99
  - Persiculida 33
- Sea Urchins and Sand Dollars Echinoidea 973
  - Spatangoida 239
  - Camarodonta 186
  - Cidaroida 154
  - Echinolampadacea 116
  - Holasteroida 61
  - Echinothurioida 60
  - Clypeasteroida 47
  - Diadematoida 33
  - Arbacioida 25
  - Aspidodiadematoida 18
  - Salenioida 14
  - Pedinoida 13
  - Echinoneoida 3
  - Micropygoida 2
  - Stomopneustoida 2
- Feather Stars and Sea Lilies Crinoidea 634
  - Comatulida 578
  - Isocrinida 24
  - Hyocrinida 23
  - Cyrtocrinida 8
  - Millericrinida 1
Segmented Worms Annelida 4,441
- Bristle Worms Polychaeta 3,115
  - Phyllodocid Bristle Worms Phyllodocida 1,025
  - Eunicid Bristle Worms Eunicida 997
  - Sabellida 343
  - Terebellida 332
  - Amphinomida 217
  - Spionida 164
  - Echiuroidea 37
- Earthworms and Leeches Clitellata 1,326
  - Crassiclitellata 635
  - Tubificida 210
  - Arhynchobdellida 162
  - Rhynchobdellida 160
  - Enchytraeida 88
  - Lumbriculida 43
  - Alluroidida 11
  - Haplotaxida 7
  - Capilloventrida 5
  - Moniligastrida 3
  - Parvidrilida 2
Cnidarians Cnidaria 4,220
- Anemones and Corals Anthozoa 2,733
  - Stony Corals Scleractinia 1,044
  - Malacalcyonacea 622
  - Actiniaria 468
  - Scleralcyonacea 309
  - Antipatharia 104
  - Zoantharia 104
  - Corallimorpharia 37
  - Spirularia 27
  - Stauriida 9
  - Penicillaria 6
  - Favositida 3
- Hydrozoans Hydrozoa 1,178
  - Leptothecata 527
  - Anthoathecata 430
  - Siphonophorae 124
  - Limnomedusae 34
  - Trachymedusae 33
  - Narcomedusae 29
  - Actinulida 1
- True Jellyfish Scyphozoa 199
  - Rhizostomeae 79
  - Semaeostomeae 79
  - Coronatae 41
- Box Jellyfish Cubozoa 46
  - Carybdeida 34
  - Chirodropida 12
- Stalked Jellyfish Staurozoa 33
  - Stauromedusae 33
- Myxozoans Myxozoa 30
  - Bivalvulida 29
  - Multivalvulida 1
- Polypodiozoans Polypodiozoa 1
  - Polypodiidea 1
Sponges Porifera 2,329
- Demosponges Demospongiae 2,001
  - Poecilosclerida 563
  - Haplosclerida 300
  - Tetractinellida 214
  - Suberitida 152
  - Dictyoceratida 143
  - Axinellida 131
  - Spongillida 89
  - Clionaida 71
  - Polymastiida 55
  - Verongiida 50
  - Tethyida 46
  - Dendroceratida 40
  - Scopalinida 31
  - Agelasida 30
  - Bubarida 28
  - Biemnida 21
  - Chondrillida 16
  - Merliida 8
  - Desmacellida 6
  - Chondrosiida 5
  - Trachycladida 2
- Calcareous Sponges Calcarea 199
  - Clathrinida 107
  - Leucosolenida 87
  - Baeriida 5
- Homoscleromorph Sponges Homoscleromorpha 69
  - Homosclerophorida 69
- Glass Sponges Hexactinellida 60
  - Lyssacinosida 42
  - Sceptrulophora 12
  - Amphidiscosida 6
Rotifers Rotifera 1,053
- Rotifers Eurotatoria 1,050
  - Ploima 843
  - Flosculariaceae 94
  - Philodinida 83
  - Collothecaceae 14
  - Adinetida 13
  - Philodinavida 3
- Seison Rotifers Pararotatoria 3
  - Seisonacea 3
Moss Animals Bryozoa 999
- Gymnolaemate Bryozoans Gymnolaemata 865
  - Cheilostomatida 772
  - Ctenostomatida 93
- Stenolaemate Bryozoans Stenolaemata 104
  - Cyclostomatida 104
- Freshwater Bryozoans Phylactolaemata 30
  - Plumatellida 30
Roundworms Nematoda 880
- Chromadorean Roundworms Chromadorea 640
  - Rhabditida 499
  - Plectida 74
  - Monhysterida 26
  - Chromadorida 23
  - Desmoscolecida 8
  - Araeolaimida 5
  - Desmodorida 5
- Enoplean Roundworms Enoplea 240
  - Mermithida 82
  - Enoplida 47
  - Triplonchida 45
  - Dorylaimida 42
  - Trichinellida 14
  - Dioctophymatida 5
  - Mononchida 4
  - Isolaimida 1
Flatworms Platyhelminthes 587
- Monogenean Flukes Monogenea 312
  - Dactylogyridea 232
  - Mazocraeidea 39
  - Gyrodactylidea 34
  - Capsalidea 5
  - Chimaericolidea 1
  - Monocotylidea 1
- Flukes Trematoda 191
  - Plagiorchiida 149
  - Diplostomida 38
  - Aspidogastrida 2
  - Stichocotylida 2
- Tapeworms Cestoda 84
  - Cyclophyllidea 24
  - Onchoproteocephalidea 15
  - Tetraphyllidea 12
  - Diphyllobothriidea 10
  - Caryophyllidea 7
  - Bothriocephalidea 6
  - Trypanorhyncha 5
  - Amphilinidea 3
  - Gyrocotylidea 1
  - Rhinebothriidea 1
Ribbon Worms Nemertea 288
- Hoplonemertean Ribbon Worms Hoplonemertea 134
  - Monostilifera 121
  - Polystilifera 13
- Pilidiophora 114
  - Heteronemertea 112
  - Hubrechtiiformes 2
- Palaeonemertean Ribbon Worms Palaeonemertea 39
  - Tubulaniformes 19
  - Carinomiformes 11
  - Archinemertea 9
- Primitive Ribbon Worms Arhynchocoela 1
  - Arhynchonemertea 1
Water Bears Tardigrada 237
- Eutardigrade Water Bears Eutardigrada 150
  - Parachela 144
  - Apochela 6
- Heterotardigrade Water Bears Heterotardigrada 86
  - Echiniscoidea 65
  - Arthrotardigrada 21
- Mesotardigrade Water Bears Mesotardigrada 1
  - Thermozodia 1
Thorny-headed Worms Acanthocephala 181
- Palaeacanthocephalan Thorny-headed Worms Palaeacanthocephala 102
  - Polymorphida 71
  - Echinorhynchida 31
- Eoacanthocephalan Thorny-headed Worms Eoacanthocephala 50
  - Neoechinorhynchida 33
  - Gyracanthocephala 17
- Archiacanthocephalan Thorny-headed Worms Archiacanthocephala 29
  - Oligacanthorhynchida 15
  - Apororhynchidea 7
  - Gigantorhynchida 7
Comb Jellies Ctenophora 179
- Tentaculate Comb Jellies Tentaculata 156
  - Cydippida 55
  - Platyctenida 49
  - Lobata 44
  - Cestida 2
  - Cryptolobiferida 2
  - Ganeshida 2
  - Cambojiida 1
  - Thalassocalycida 1
- Beroid Comb Jellies Nuda 23
  - Beroida 23
Lampshells Brachiopoda 134
- Articulate Lampshells Rhynchonellata 82
  - Terebratulida 50
  - Rhynchonellida 26
  - Thecideida 5
  - Atrypida 1
- Lampshells Lingulata 27
  - Lingulida 27
- Strophomenate Lampshells Strophomenata 13
  - Productida 13
- Craniates Craniata 12
  - Craniida 12
Arrow Worms Chaetognatha 105
- Arrow Worms Sagittoidea 105
  - Phragmophora 66
  - Aphragmophora 39
Horsehair Worms Nematomorpha 56
- Horsehair Worms Gordioida 51
  - Gordioidea 51
- Marine Horsehair Worms Nectonematoida 5
  - Nectonematoidea 5
Acorn Worms and Pterobranchs Hemichordata 23
- Graptolites Graptolithoidea 23
  - Cephalodiscoidea 18
  - Rhabdopleuroidea 5
Mud Dragons Kinorhyncha 19
- Cyclorhagid Mud Dragons Cyclorhagida 19
  - Echinorhagata 19
Placozoans Placozoa 3
- Placozoans Uniplacotomia 2
  - Hoilungea 1
  - Trichoplacea 1
- Branching Placozoans Polyplacotomia 1
  - Polyplacotomea 1
Cycliophorans Cycliophora 2
- Cycliophorans Eucycliophora 2
  - Symbiida 2
Gnathiferans Gnathifera 1
- Micrognathozoans Micrognathozoa 1
  - Limnognathida 1