Order Family Genus Species Common name Gestation 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

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.

Species’ average gestation lengths

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

Artiodactyla Bovidae Ovis Canadensis Rocky Mountain Bighorn Sheep

165

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

Artiodactyla Cervidae Cervus Duvaucelii Barasingha/swamp Deer

221

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

Artiodactyla Hippopotamidae

Choeropsis Liberiensis Pygmy Hippopotamus 199

Artiodactyla Hippopotamidae

Hippopotamus Amphibius Hippopotamus 240

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

Artiodactyla Tragulidae Tragulus Napu Greater Malayan Chevrotain

153

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

Carnivores Canidae Urocyon Cinereoargenteus

Grey Fox 63

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

Carnivores Herpestidae Suricata Suricatta Slender-tailed Meerkat

77

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

Carnivores Mustelidae Aonyx Cinereus Asian Small-clawed Otter

62

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

Carnivores Ursidae Ursus Americanus North American Black Bear

210

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

Cetaceans Delphinidae Lagenorhynchus Obliquidens Pacific White-sided Dolphin

332

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

Marsupalia Macropodidae Dendrolagus Matschiei Matschie's Tree Kangaroo

44

Marsupalia Macropodidae Macropus Fuliginosus Western Grey Kangaroo

39

Marsupalia Macropodidae Macropus Giganteus Great Grey Kangaroo 45

Marsupalia Macropodidae Macropus Parma White-fronted Wallaby

33

Marsupalia Macropodidae Macropus Robustus Common Wallaroo 35

Marsupalia Macropodidae Macropus Rufogriseus Red-necked Wallaby 29

Marsupalia Macropodidae Macropus Rufus Red Kangaroo 33

Marsupalia Macropodidae Petrogale Xanthopus Yellow-footed Rock Wallaby

31

Marsupalia Macropodidae Wallabia Bicolor Swamp Wallaby 35

Marsupalia Phascolarctidae Phascolarctos Cinereus Koala 30

Marsupalia Potoroidae Bettongia Penicillata Brush-tailed Rat-kangaroo

21

New World monkeys

Aotidae Aotus Lemurinus Grey-legged Douroucouli

143

New World monkeys

Aotidae Aotus Lemurinus Grey-bellied douroucouli

133

New World monkeys

Aotidae Aotus Nancymaae Southern Douroucouli 133

New World monkeys

Aotidae Aotus Trivirgatus Douroucouli 151

New World monkeys

Aotidae Aotus Vociferans Noisy Douroucouli 143

New World monkeys

Atelidae Alouatta Caraya Black Howler 180

New World monkeys

Atelidae Alouatta Palliata Mantled Howler 187

New World monkeys

Atelidae Ateles Fusciceps Brown-headed Spider Monkey

229

New World monkeys

Atelidae Ateles Geoffroyi Black-handed Spider Monkey

229

New World monkeys

Atelidae Ateles Paniscus Black Spider Monkey 229

New World monkeys

Atelidae Lagothrix Lagotricha Woolly Monkey 223

New World monkeys

Cebidae Callimico Goeldii Goeldi's Monkey 154

New World monkeys

Cebidae Callithrix Argentata Silvery Marmoset 140

New World monkeys

Cebidae Callithrix Geoffroyi White-fronted Marmoset

150

New World monkeys

Cebidae Callithrix Jacchus Common Marmoset 144

New World monkeys

Cebidae Callithrix Penicillata Black Tufted-ear Marmoset

155

New World monkeys

Cebidae Callithrix Penicillata Black-eared Marmoset 155

New World monkeys

Cebidae Callithrix Pygmaea Pygmy Marmoset 136

New World monkeys

Cebidae Cebus Albifrons Brown Pale-fronted Capuchin

160

New World monkeys

Cebidae Cebus Apella Brown Capuchin 150

New World monkeys

Cebidae Cebus Capucinus White-throated Capuchin

180

New World monkeys

Cebidae Cebus Olivaceus Weeper Capuchin 162

New World monkeys

Cebidae Leontopithecus Chrysomela Golden-headed Tamarin

129

New World monkeys

Cebidae Leontopithecus Chrysopygus Golden-rumped Tamarin

128

New World monkeys

Cebidae Leontopithecus Rosalia Golden Lion Tamarin 128

New World monkeys

Cebidae Saguinus Bicolor Bare-faced Tamarin 160

New World monkeys

Cebidae Saguinus Fuscicollis Saddle-back Tamarin 148

New World monkeys

Cebidae Saguinus Geoffroyi Geoffroy's Tamarin 143

New World monkeys

Cebidae Saguinus Imperator Emperor Tamarin 142

New World monkeys

Cebidae Saguinus Labiatus White-lipped Tamarin 142

New World monkeys

Cebidae Saguinus Midas Red-handed Tamarin 154

New World monkeys

Cebidae Saguinus Oedipus Cotton-top Tamarin 183

New World monkeys

Cebidae Saimiri Sciureus Common Squirrel Monkey

160

New World monkeys

Pitheciidae Callicebus Donacophilus White-eared titi 165

New World monkeys

Pitheciidae Callicebus Moloch Dusky Titi 165

New World monkeys

Pitheciidae Pithecia Pithecia White-faced Saki 169

Old World Monkeys

Cercopithecidae Allenopithecus Nigroviridis Allen's Swamp Monkey

165

Old World Monkeys

Cercopithecidae Cercocebus Agilis Agile Mangabey 180

Old World Monkeys

Cercopithecidae Cercocebus Torquatus Sooty Mangabey 168

Old World Monkeys

Cercopithecidae Cercopithecus Ascanius Guenon 165

Old World Monkeys

Cercopithecidae Cercopithecus Cephus Moustached Monkey 185

Old World Monkeys

Cercopithecidae Cercopithecus Diana Diana Monkey 150

Old World Monkeys

Cercopithecidae Cercopithecus Mona Mona Monkey 165

Old World Monkeys

Cercopithecidae Cercopithecus Neglectus De Brazza's Monkey 185

Old World Monkeys

Cercopithecidae Cercopithecus Petaurista Lesser Spot-nosed Guenon

200

Old World Monkeys

Cercopithecidae Cercopithecus Wolfi Wolf's Guenon 185

Old World Monkeys

Cercopithecidae Chlorocebus Sabaceus Green Monkey 165

Old World Monkeys

Cercopithecidae Colobus Angolensis Angolian Colobus 180

Old World Monkeys

Cercopithecidae Colobus Guereza Eastern Black-and-white Colobus

180

Old World Monkeys

Cercopithecidae Colobus Polykomos Western Black-and-white Colobus

168

Old World Monkeys

Cercopithecidae Erythrocebus Patas Patas Monkey 217

Old World Monkeys

Cercopithecidae Lophocebus Albigena White-cheeked Mangabey

176

Old World Monkeys

Cercopithecidae Macaca Assamensis Assam Macaque 165

Old World Monkeys

Cercopithecidae Macaca Fascicularis Crab-eating Macaque 165

Old World Monkeys

Cercopithecidae Macaca Fuscata Japanese Macaque 173

Old World Monkeys

Cercopithecidae Macaca Maura Moor Macaque 174

Old World Monkeys

Cercopithecidae Macaca Mulatta Rhesus Macaque 166

Old World Monkeys

Cercopithecidae Macaca Nemestrina Pig-tailed Macaque 174

Old World Monkeys

Cercopithecidae Macaca Nigra Sulawesi Crested Macaque

176

Old World Monkeys

Cercopithecidae Macaca Silenus Lion-tailed Macaque 154

Old World Monkeys

Cercopithecidae Macaca Sylvanus Barbary Ape 196

Old World Monkeys

Cercopithecidae Macaca Tonkeana Tonkean Macaque 177

Old World Monkeys

Cercopithecidae Mandrillus Sphinx Mandrill 172

Old World Monkeys

Cercopithecidae Papio Hamadryas Hamadryas Baboon 171

Old World Monkeys

Cercopithecidae Papio Hamadryas Yellow Baboon 171

Old World Monkeys

Cercopithecidae Papio Hamadryas Olive Baboon 180

Old World Monkeys

Cercopithecidae Papio Papio Guinea Baboon 184

Old World Monkeys

Cercopithecidae Pygathrix Nemaeus Douc Langur 180

Old World Monkeys

Cercopithecidae Semnopithecus Entellus Hanuman Langur 200

Old World Monkeys

Cercopithecidae Theropithecus Gelada Gelada Baboon 165

Old World Monkeys

Cercopithecidae Trachypithecus Cristatus Silvered Leaf Monkey 180

Old World Monkeys

Cercopithecidae Trachypithecus Francoisi Francois' Monkey 180

Old World Monkeys

Cercopithecidae Trachypithecus Obscurus Dusky Leaf Monkey 145

OLD WORLD PRIMATES

Cercopithecidae Cercopithecus Mitis Sykes' Monkey 165

Perissodactyla

Equidae Equus Burchellii Common Zebra 345

Perissodactyla

Equidae Equus Caballus Przewalski's Wild Horse

335

Perissodactyla

Equidae Equus Grevyi Grevy's Zebra 407

Perissodactyla

Equidae Equus Zebra Hartmann's Mountain Zebra

362

Perissodactyla

Tapiridae Tapirus Bairdii Baird's Tapir 392

Perissodactyla

Tapiridae Tapirus Indicus Malayan Tapir 395

Perissodactyla

Tapiridae Tapirus Terrestris South American Tapir 395

Pilosa Dasypodidae Chaetophractus Vellerosus Screaming hairy armadillo

67

Pilosa Dasypodidae Chaetophractus Villosus Big hairy armadillo 67

Pilosa Megalonychidae Choloepus Hoffmanni Hoffmann's Two-toed Sloth

255

Pilosa Myrmecophagidae

Tamandua Tetradactyla Southern Tamandua 140

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

Prosimians Cheirogaleidae Microcebus Coquereli Coquerel's Mouse Lemur

165

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

Rodentia Erethizontidae Coendou Prehensilis Prehensile-tailed Porcupine

202

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

Rodentia Sciuridae Cynomys Ludovicianus Black-tailed Prairie Dog

30

Scandentia Tupaiidae Tupaia Glis Common Tree Shrew 55

Tubulidentata

Orycteropodidae

Orycteropus Afer Aardvark 252