List of mammalian gestation durations

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Mammal Gestation period (days)[1] Reference
Min Max Average
Alpaca 345 [2][3]
Baboon 187
Bear (black) 220 [4]
Bear (grizzly) 215
Bear (polar) 241
Beaver 122
American bison 217
Camel (Bactrian) 360 420 390
Cat (domestic) 58 67 64
Chimpanzee 230 250 240
Chinchilla 105 115 110 [5]
Chipmunk 31
Cow 279 292 286
Deer (white-tailed) 201
Dog (domestic) 58 65 61
Donkey 365
Walrus 456
Elephant (Asian) 617
Elephant (African) 645
Elk (wapiti) 240 250 245
European mink 38 76 57 [5]
Ferret (domestic) 41 42 41 [5]
Fox (red) 52
Gerbil 22 26 24 [5]
Giraffe 420 450 430
Goat (domestic) 145 155 150
Gorilla 255 260 257
Guinea pig 56 74 65 [5]
Hamster 16 23 20
Hippopotamus 225 250 237
Horse 330 342 336
Human 259 280 270
Kangaroo 42
Leopard 92 95 93
Lion 108
Llama 330
Mink 40 75 57
Monkey (rhesus) 164
Moose 240 250 245
Mouse (domestic white) 19
Mouse (meadow) 21
Muskrat 28 30 29
Opossum (Virginia) 12 13 12
Otter 60 86 73
Pig (domestic) 112 115 113
Porcupine 210
Puma 90
Rabbit (domestic) 28 35 31 [5]
Raccoon 63
Rat 21 23 22 [6]
Rhinoceros (black) 450
Seal 330
Sea lion (California) 350
Sheep (domestic) 144 151 147
Squirrel (gray) 30 40 35
Tiger 105 113 109
Whale (sperm) 480 590 535
Wolf 60 68 64
Wombat 26 28 27
Zebra (Grant's) 361 390 375

References[edit]

Notes[edit]

  1. ^ infoplease.com > Health and Science > Environment and Nature > Nature > Gestation, Incubation, and Longevity of Selected Animals By James G. Doherty, general curator, The Wildlife Conservation Society. Retrieved on April 9, 2010
  2. ^ Paris Hill Farm. "Alpacas 101". Retrieved 2012-07-14. 
  3. ^ Northwest Alpacas. "Alpaca Q&A". Retrieved 2012-07-14. 
  4. ^ University of Michigan. "Ursus Americanus". Retrieved 2013-01-16. 
  5. ^ a b c d e f Anamnese en lichamelijk onderzoek bij gezelschapsdieren, A.Rijnberk, F.J.van Sluis, 2nd print, Bohn Stafleu van Loghum, 2005, (Current Dutch veterinary examination study book for small domestic mammals)
  6. ^ The Laboratory Rat , 2nd Edition, Eds. Mark A. Sucklow, Steven H. Weisbroth, and Craig L. Franklin. Page 151.