Species’ average gestation lengths
Species are ordered alphabetically by their latin name within their order.
Please be advised that these are average gestation days ONLY and that each individual’s actual gestation time may vary.
Gestation Order Family Genus Species Common name length (days)
Apes Hominidae Gorilla Gorilla Gorilla 253
Apes Hominidae Pan Paniscus Bonobo 225
Apes Hominidae Pan Troglodytes Chimpanzee 233
Apes Hominidae Pongo Pygmaeus Orangutan 249
Apes Hylobatidae Hylobates Agilis Agile Gibbon 196
Apes Hylobatidae Hylobates Concolor Crested Gibbon 217
Apes Hylobatidae Hylobates Lar Lar Gibbon 212
Apes Hylobatidae Hylobates Moloch Javan gibbon 240
Apes Hylobatidae Nomascus leucogenys White-cheeked gibbon 225
Apes Hylobatidae Symphalangus Syndactylus Siamang 232
Artiodactyla Antilocapridae Antilocapra Americana Pronghorn 250
Artiodactyla Bovidae Addax Nasomaculatus Addax 260
Artiodactyla Bovidae Aepyceros Melampus Impala 195
Artiodactyla Bovidae Antidorcas Marsupialis Springbok 168
Artiodactyla Bovidae Antilope Cervicapra Blackbuck 183
Artiodactyla Bovidae Bison Bison American Bison 285
Artiodactyla Bovidae Bison Bonasus European Wisent 263
Artiodactyla Bovidae Bos Frontalis Gaur 275
Artiodactyla Bovidae Bos Grunniens Domestic Yak 270
Artiodactyla Bovidae Bos Javanicus Banteng 292
Artiodactyla Bovidae Bos Taurus Cow/ox 255
Artiodactyla Bovidae Boselaphus Tragocamelus Nilgai 240
Artiodactyla Bovidae Bubalus Depressicornis Anoa 303
Artiodactyla Bovidae Budorcas Taxicolor Sichuan Takin 210
Artiodactyla Bovidae Capra Falconeri Markhor 166
Artiodactyla Bovidae Capra Hircus Goat 161
Artiodactyla Bovidae Capra Ibex Ibex 165
Artiodactyla Bovidae Capra Nubiana Nubian Ibex 162
Artiodactyla Bovidae Capra Sibirica Siberian Ibex 162
Artiodactyla Bovidae Cephalophus Maxwellii Maxwell's Duiker 135
Artiodactyla Bovidae Cephalophus Monticola Blue Duiker 135
Artiodactyla Bovidae Cephalophus Niger Black Duiker 135
Artiodactyla Bovidae Cephalophus Rufilatus Red-flanked Duiker 237
Artiodactyla Bovidae Connochaetes Gnou Black Wildebeest 231
Artiodactyla Bovidae Damaliscus Lunatus Topi 217
Artiodactyla Bovidae Damaliscus Pygargus Blesbok 210
Artiodactyla Bovidae Gazella Cuvieri Edmi Gazelle 172
Artiodactyla Bovidae Gazella Dama Addra Gazelle 175
Artiodactyla Bovidae Gazella dorcas Dorcas Gazelle 90
Artiodactyla Bovidae Gazella Spekei Spekes' Gazelle 179
Artiodactyla Bovidae Gazella Thomsonii Thomson's Gazelle 169
Artiodactyla Bovidae Hemitragus Hylocrius Nilgiri Tahr 211
Artiodactyla Bovidae Hemitragus Jemlahicus Himalayan Tahr 185
Artiodactyla Bovidae Hippotragus Equinus Roan Antelope 281
Artiodactyla Bovidae Hippotragus Niger Sable Antelope 275
Artiodactyla Bovidae Kobus Ellipsiprymnus Common Waterbuck 279
Artiodactyla Bovidae Kobus Megaceros Nile Lechwe 230
Artiodactyla Bovidae Litocranius Walleri Gerenuk 203
Artiodactyla Bovidae Madoqua Guentheri Gunther's Dik-dik 171
Artiodactyla Bovidae Madoqua Kirkii Kirk's Dik-dik 171
Artiodactyla Bovidae Nemorhaedus Crispus Japanese Serow 215
Artiodactyla Bovidae Nemorhaedus Goral Common Goral 255
Artiodactyla Bovidae Oreamnos Americanus Rocky Mountain Goat 166
Artiodactyla Bovidae Oreotragus Oreotragus Klipspringer 214
Artiodactyla Bovidae Oryx Dammah Scimitar-horned Oryx 248
Artiodactyla Bovidae Oryx Leucoryx Arabian Oryx 248
Rocky Mountain Artiodactyla Bovidae Ovis Canadensis 165 Bighorn Sheep
Artiodactyla Bovidae Ovis Dalli Dall's Sheep 365
Artiodactyla Bovidae Ovis Vignei Arkal Urial Sheep 365
Artiodactyla Bovidae Raphicerus Campestris Steenbok 190
Artiodactyla Bovidae Rupicapra Rupicapra Alpine Chamois 172
Artiodactyla Bovidae Syncerus Caffer African Buffalo 315
Artiodactyla Bovidae Taurotragus Oryx Common Eland 265
Artiodactyla Bovidae Tragelaphus Angasii Nyala 220
Artiodactyla Bovidae Tragelaphus Eurycerus Bongo 283
Artiodactyla Bovidae Tragelaphus Scriptus Bushbuck 180
Artiodactyla Bovidae Tragelaphus Spekii Sitatunga 255
Artiodactyla Bovidae Tragelaphus Strepsiceros Greater Kudu 225
Artiodactyla Camelidae Camelus Bactrianus Bactrian Camel 396
Artiodactyla Camelidae Camelus Dromedarius Arabian Camel 405
Artiodactyla Camelidae Lama Glama Llama 358
Artiodactyla Camelidae Lama Guanicoe Guanaco 342
Artiodactyla Camelidae Lama Pacos Alpaca 342
Artiodactyla Cervidae Alces Alces Moose 224
Artiodactyla Cervidae Cervus Albirostris White-lipped Deer 300
Barasingha/swamp Artiodactyla Cervidae Cervus Duvaucelii 221 Deer
Artiodactyla Cervidae Cervus Elaphus Red Deer 255
Artiodactyla Cervidae Cervus Eldi Brow-antlered Deer 213
Artiodactyla Cervidae Cervus nippon Sika Deer 235
Artiodactyla Cervidae Dama Dama Fallow Deer 229
Artiodactyla Cervidae Elaphodus Cephalophus Tufted Deer 180
Artiodactyla Cervidae Elaphurus Davidianus Pere David's Deer 292
Artiodactyla Cervidae Muntiacus Muntjak Indian Muntjac 165
Artiodactyla Cervidae Muntiacus Reevesi Chinese Muntjac 180
Artiodactyla Cervidae Odocoileus Hemionus Mule Deer 207
Artiodactyla Cervidae Odocoileus Virginianus Whitetailed Deer 200
Artiodactyla Cervidae Pudu Puda Southern Pudu 203
Artiodactyla Cervidae Rangifer Tarandus Reindeer 225
Artiodactyla Giraffidae Giraffa Camelopardalis Giraffe 444
Hippopotamida Artiodactyla Choeropsis Liberiensis Pygmy Hippopotamus 199 e Hippopotamida Artiodactyla Hippopotamus Amphibius Hippopotamus 240 e
Artiodactyla Suidae Babyrousa Babyrussa Babirusa 163
Artiodactyla Suidae Phacochoerus Aethiopicus Desert Wart Hog 172
Artiodactyla Suidae Phacochoerus Africanus Wart Hog 172
Artiodactyla Suidae Potamochoerus Porcus Red River Hog 70
Artiodactyla Suidae Sus Scrofa Wild Boar 115
Artiodactyla Tayassuidae Pecari Tajacu Collared Peccary 128
Greater Malayan Artiodactyla Tragulidae Tragulus Napu 153 Chevrotain
Carnivores Ailuridae Ailurus Fulgens Red Panda 128
Carnivores Canidae Alopex Lagopus Arctic Fox 52
Carnivores Canidae Canis Latrans Coyote 57
Carnivores Canidae Canis Lupus Grey Wolf 61
Carnivores Canidae Canis Lupus Domestic Dog 61
Carnivores Canidae Canis Mesomelas Black-backed Jackal 63
Carnivores Canidae Canis Rufus Red Wolf 61
Carnivores Canidae Chrysocyon Brachyurus Maned Wolf 65
Carnivores Canidae Crocuta Crocuta Spotted Hyena 110
Carnivores Canidae Lycaon Pictus African Hunting Dog 71
Carnivores Canidae Nyctereutes Procyonoides Raccoon Dog 62
Carnivores Canidae Otocyon Megalotis Bat-eared Fox 67
Carnivores Canidae Speothos Venaticus Bush Dog 67
Cinereoargenteu Carnivores Canidae Urocyon Grey Fox 63 s
Carnivores Canidae Vulpes Corsac Corsac Fox 55
Carnivores Canidae Vulpes Velox Swift Fox 50
Carnivores Canidae Vulpes Vulpes Red Fox 51
Carnivores Canidae Vulpes Zerda Fennec Fox 50
Carnivores Felidae Acinonyx Jubatus Cheetah 92
Carnivores Felidae Caracal Caracal Caracal Lynx 74
Carnivores Felidae Felis Chaus Jungle Cat 65
Carnivores Felidae Felis Margarita Sand Cat 61
Carnivores Felidae Felis Silvestris Wild Cat 66
Carnivores Felidae Leopardus geoffroyi Geoffroy's cat 74
Carnivores Felidae Leopardus Pardalis Ocelot 83
Carnivores Felidae Leopardus Wiedii Margay 81
Carnivores Felidae Leptailurus Serval Serval 71
Carnivores Felidae Lynx Lynx Northern Lynx 67
Carnivores Felidae Lynx Rufus Bobcat 55
Carnivores Felidae Neofelis Nebulosa Clouded Leopard 93
Carnivores Felidae Panthera Leo Lion 109
Carnivores Felidae Panthera Onca Jaguar 90
Carnivores Felidae Panthera Tigris Tiger 103
Carnivores Felidae Prionailurus Bengalensis Leopard Cat 66
Carnivores Felidae Prionailurus Viverrinus Fishing Cat 63
Carnivores Felidae Puma Concolor Puma 96
Carnivores Felidae Uncia Uncia Snow Leopard 98
Carnivores Herpestidae Helogale Parvula Dwarf Mongoose 52
Carnivores Herpestidae Mungos Mungo Banded Mongoose 60
Slender-tailed Carnivores Herpestidae Suricata Suricatta 77 Meerkat
Carnivores Hyaenidae Hyaena Hyaena Striped Hyaena 90
Carnivores Hyaenidae Proteles Cristatus Aardwolf 95
Carnivores Mephitidae Mephitis Mephitis Striped Skunk 63
Carnivores Mustelidae Aonyx CApensis African Clawless Otter 71
Asian Small-clawed Carnivores Mustelidae Aonyx Cinereus 62 Otter
Carnivores Mustelidae Eira Barbara Tayra 66
Carnivores Mustelidae Enhydra Lutris Sea Otter 180
Carnivores Mustelidae Gulo Gulo Wolverine 240
Carnivores Mustelidae Lutra Maculicollis Spotted-necked Otter 60
Carnivores Mustelidae Martes Pennanti Fisher 365
Carnivores Mustelidae Mustela Putorius European Polecat 41
Carnivores Procyonidae Nasua Narica Coati 73
Carnivores Procyonidae Potos Flavus Kinkajou 115
Carnivores Procyonidae Procyon Lotor Raccoon 66
Carnivores Ursidae Helarctos Malayanus Malayan Sun Bear 208
Carnivores Ursidae Melursus Ursinus Sloth Bear 202
Carnivores Ursidae Tremarctos Ornatus Spectacled Bear 247
North American Black Carnivores Ursidae Ursus Americanus 210 Bear
Carnivores Ursidae Ursus Arctos Brown Bear 232
Carnivores Ursidae Ursus Maritimus Polar Bear 210
Carnivores Ursidae Ursus Thibetanus Asiatic Black Bear 180
Carnivores Viverridae Arctictis Binturong Binturong 91
Carnivores Viverridae Genetta Genetta Small Spotted Genet 66
Carnivores Viverridae Paguma Larvata Masked Palm Civet 90
Pacific White-sided Cetaceans Delphinidae Lagenorhynchus Obliquidens 332 Dolphin
Cetaceans Delphinidae Tursiops Truncatus Bottlenose Dolphin 332
Chiroptera Pteropodidae Pteropus Rodricensis Rodriguez Flying Fox 145
Hyrax Procaviidae Procavia Capensis Rock Hyrax 219
Lagomorpha Leporidae Oryctolagus Cuniculus Domestic Rabbit 31
Matschie's Tree Marsupalia Macropodidae Dendrolagus Matschiei 44 Kangaroo
Western Grey Marsupalia Macropodidae Macropus Fuliginosus 39 Kangaroo
Marsupalia Macropodidae Macropus Giganteus Great Grey Kangaroo 45
White-fronted Marsupalia Macropodidae Macropus Parma 33 Wallaby
Marsupalia Macropodidae Macropus Robustus Common Wallaroo 35
Marsupalia Macropodidae Macropus Rufogriseus Red-necked Wallaby 29
Marsupalia Macropodidae Macropus Rufus Red Kangaroo 33
Yellow-footed Rock Marsupalia Macropodidae Petrogale Xanthopus 31 Wallaby
Marsupalia Macropodidae Wallabia Bicolor Swamp Wallaby 35
Marsupalia Phascolarctidae Phascolarctos Cinereus Koala 30
Brush-tailed Rat- Marsupalia Potoroidae Bettongia Penicillata 21 kangaroo
New World Grey-legged Aotidae Aotus Lemurinus 143 monkeys Douroucouli
New World Grey-bellied Aotidae Aotus Lemurinus 133 monkeys douroucouli
New World Aotidae Aotus Nancymaae Southern Douroucouli 133 monkeys
New World Aotidae Aotus Trivirgatus Douroucouli 151 monkeys
New World Aotidae Aotus Vociferans Noisy Douroucouli 143 monkeys
New World Atelidae Alouatta Caraya Black Howler 180 monkeys
New World Atelidae Alouatta Palliata Mantled Howler 187 monkeys
New World Brown-headed Spider Atelidae Ateles Fusciceps 229 monkeys Monkey
New World Black-handed Spider Atelidae Ateles Geoffroyi 229 monkeys Monkey
New World Atelidae Ateles Paniscus Black Spider Monkey 229 monkeys
New World Atelidae Lagothrix Lagotricha Woolly Monkey 223 monkeys
New World Cebidae Callimico Goeldii Goeldi's Monkey 154 monkeys
New World Cebidae Callithrix Argentata Silvery Marmoset 140 monkeys
New World White-fronted Cebidae Callithrix Geoffroyi 150 monkeys Marmoset
New World Cebidae Callithrix Jacchus Common Marmoset 144 monkeys
New World Black Tufted-ear Cebidae Callithrix Penicillata 155 monkeys Marmoset
New World Cebidae Callithrix Penicillata Black-eared Marmoset 155 monkeys
New World Cebidae Callithrix Pygmaea Pygmy Marmoset 136 monkeys
New World Brown Pale-fronted Cebidae Cebus Albifrons 160 monkeys Capuchin
New World Cebidae Cebus Apella Brown Capuchin 150 monkeys
New World White-throated Cebidae Cebus Capucinus 180 monkeys Capuchin
New World Cebidae Cebus Olivaceus Weeper Capuchin 162 monkeys
New World Golden-headed Cebidae Leontopithecus Chrysomela 129 monkeys Tamarin
New World Golden-rumped Cebidae Leontopithecus Chrysopygus 128 monkeys Tamarin
New World Cebidae Leontopithecus Rosalia Golden Lion Tamarin 128 monkeys
New World Cebidae Saguinus Bicolor Bare-faced Tamarin 160 monkeys
New World Cebidae Saguinus Fuscicollis Saddle-back Tamarin 148 monkeys
New World Cebidae Saguinus Geoffroyi Geoffroy's Tamarin 143 monkeys
New World Cebidae Saguinus Imperator Emperor Tamarin 142 monkeys
New World Cebidae Saguinus Labiatus White-lipped Tamarin 142 monkeys
New World Cebidae Saguinus Midas Red-handed Tamarin 154 monkeys
New World Cebidae Saguinus Oedipus Cotton-top Tamarin 183 monkeys
New World Common Squirrel Cebidae Saimiri Sciureus 160 monkeys Monkey
New World Pitheciidae Callicebus Donacophilus White-eared titi 165 monkeys
New World Pitheciidae Callicebus Moloch Dusky Titi 165 monkeys
New World Pitheciidae Pithecia Pithecia White-faced Saki 169 monkeys
Old World Allen's Swamp Cercopithecidae Allenopithecus Nigroviridis 165 Monkeys Monkey
Old World Cercopithecidae Cercocebus Agilis Agile Mangabey 180 Monkeys
Old World Cercopithecidae Cercocebus Torquatus Sooty Mangabey 168 Monkeys
Old World Cercopithecidae Cercopithecus Ascanius Guenon 165 Monkeys
Old World Cercopithecidae Cercopithecus Cephus Moustached Monkey 185 Monkeys
Old World Cercopithecidae Cercopithecus Diana Diana Monkey 150 Monkeys
Old World Cercopithecidae Cercopithecus Mona Mona Monkey 165 Monkeys
Old World Cercopithecidae Cercopithecus Neglectus De Brazza's Monkey 185 Monkeys
Old World Lesser Spot-nosed Cercopithecidae Cercopithecus Petaurista 200 Monkeys Guenon
Old World Cercopithecidae Cercopithecus Wolfi Wolf's Guenon 185 Monkeys
Old World Cercopithecidae Chlorocebus Sabaceus Green Monkey 165 Monkeys
Old World Cercopithecidae Colobus Angolensis Angolian Colobus 180 Monkeys
Old World Eastern Black-and- Cercopithecidae Colobus Guereza 180 Monkeys white Colobus
Old World Western Black-and- Cercopithecidae Colobus Polykomos 168 Monkeys white Colobus
Old World Cercopithecidae Erythrocebus Patas Patas Monkey 217 Monkeys
Old World White-cheeked Cercopithecidae Lophocebus Albigena 176 Monkeys Mangabey
Old World Cercopithecidae Macaca Assamensis Assam Macaque 165 Monkeys
Old World Cercopithecidae Macaca Fascicularis Crab-eating Macaque 165 Monkeys
Old World Cercopithecidae Macaca Fuscata Japanese Macaque 173 Monkeys
Old World Cercopithecidae Macaca Maura Moor Macaque 174 Monkeys
Old World Cercopithecidae Macaca Mulatta Rhesus Macaque 166 Monkeys
Old World Cercopithecidae Macaca Nemestrina Pig-tailed Macaque 174 Monkeys
Old World Sulawesi Crested Cercopithecidae Macaca Nigra 176 Monkeys Macaque
Old World Cercopithecidae Macaca Silenus Lion-tailed Macaque 154 Monkeys
Old World Cercopithecidae Macaca Sylvanus Barbary Ape 196 Monkeys
Old World Cercopithecidae Macaca Tonkeana Tonkean Macaque 177 Monkeys
Old World Cercopithecidae Mandrillus Sphinx Mandrill 172 Monkeys
Old World Cercopithecidae Papio Hamadryas Hamadryas Baboon 171 Monkeys
Old World Cercopithecidae Papio Hamadryas Yellow Baboon 171 Monkeys
Old World Cercopithecidae Papio Hamadryas Olive Baboon 180 Monkeys
Old World Cercopithecidae Papio Papio Guinea Baboon 184 Monkeys
Old World Cercopithecidae Pygathrix Nemaeus Douc Langur 180 Monkeys
Old World Cercopithecidae Semnopithecus Entellus Hanuman Langur 200 Monkeys
Old World Cercopithecidae Theropithecus Gelada Gelada Baboon 165 Monkeys
Old World Cercopithecidae Trachypithecus Cristatus Silvered Leaf Monkey 180 Monkeys
Old World Cercopithecidae Trachypithecus Francoisi Francois' Monkey 180 Monkeys
Old World Cercopithecidae Trachypithecus Obscurus Dusky Leaf Monkey 145 Monkeys
OLD WORLD Cercopithecidae Cercopithecus Mitis Sykes' Monkey 165 PRIMATES
Perissodactyl Equidae Equus Burchellii Common Zebra 345 a
Perissodactyl Przewalski's Wild Equidae Equus Caballus 335 a Horse
Perissodactyl Equidae Equus Grevyi Grevy's Zebra 407 a
Perissodactyl Hartmann's Mountain Equidae Equus Zebra 362 a Zebra
Perissodactyl Tapiridae Tapirus Bairdii Baird's Tapir 392 a
Perissodactyl Tapiridae Tapirus Indicus Malayan Tapir 395 a
Perissodactyl Tapiridae Tapirus Terrestris South American Tapir 395 a
Screaming hairy Pilosa Dasypodidae Chaetophractus Vellerosus 67 armadillo
Pilosa Dasypodidae Chaetophractus Villosus Big hairy armadillo 67
Hoffmann's Two-toed Pilosa Megalonychidae Choloepus Hoffmanni 255 Sloth
Myrmecophagid Pilosa Tamandua Tetradactyla Southern Tamandua 140 ae
Pinnipeds Otariidae Callorhinus Ursinus Northern Fur Seal 356
Pinnipeds Otariidae Zalophus Californianus California Sealion 332
Pinnipeds Phocidae Halichoerus Grypus Grey Seal 335
Pinnipeds Phocidae Phoca Vitulina Harbor Seal 301
Proboscidea Elephantidae Elephas Maximus Asiatic Elephant 661
Proboscidea Elephantidae Loxodonta Africana African Elephant 644
Coquerel's Mouse Prosimians Cheirogaleidae Microcebus Coquereli 165 Lemur
Prosimians Galagidae Otolemur Crassicaudatus Greater Bushbaby 131
Prosimians Indriidae Propithecus Coquereli Coquerel's Sifaka 160
Prosimians Indriidae Propithecus Verreauxi Verreaux's Sifaka 160
Prosimians Lemuridae Eulemur Coronatus Crowned Lemur 125
Prosimians Lemuridae Eulemur Fulvus Brown Lemur 119
Prosimians Lemuridae Eulemur Macaco Black Lemur 127
Prosimians Lemuridae Eulemur Mongoz Mongoose Lemur 142
Prosimians Lemuridae Eulemur Rubriventer Red-bellied Lemur 119
Prosimians Lemuridae Hapalemur Griseus Grey Gentle Lemur 142
Prosimians Lemuridae Lemur Catta Ring-tailed Lemur 140
Prosimians Lemuridae Varecia Variegata Ruffed Lemur 102
Prosimians Lorisidae Nycticebus Coucang Slow Loris 165
Prosimians Lorisidae Nycticebus Pygmaeus Pygmy Slow Loris 192
Prosimians Lorisidae Perodicticus Potto Potto 193
Reptilia Boidae Eunectes Murinus Green anaconda 197
Reptilia Testudinidae Chelonoidis Denticulata Yellow footed tortoise 145
Rodentia Bathyergidae Cryptomys Damarensis Damara Mole Rat 81
Rodentia Castoridae Castor Canadensis American Beaver 105
Rodentia Caviidae Cavia Porcellus Guinea Pig 66
Rodentia Caviidae Dolichotis Patagonum Patagonian Cavy 90
Rodentia Dasyproctidae Myoprocta Acouchy Acouchi 112
Prehensile-tailed Rodentia Erethizontidae Coendou Prehensilis 202 Porcupine
Rodentia Hydrochaeridae Hydrochaeris Hydrochaeris Capybara 152
Rodentia Hystricidae Hystrix Cristata Crested Porcupine 56
Rodentia Leporidae Oryctolagus Cuniculus Domestic Rabbit 31
Rodentia Myocastoridae Myocastor Coypus Nutria 130
Rodentia Pedetidae Pedetes Capensis Springhaas 81
Black-tailed Prairie Rodentia Sciuridae Cynomys Ludovicianus 30 Dog
Scandentia Tupaiidae Tupaia Glis Common Tree Shrew 55
Tubulidentat Orycteropodida Orycteropus Afer Aardvark 252 a e