List of mammalian gestation durations

Main article: Pregnancy (mammals) ยง Gestation periods
Pregnant squirrel at Fort Island Gulf Beach Fishing Pier, Crystal River, Florida
Mammal Gestation period (days)[1] Reference
Min Max Average
Alpaca 345 [2][3]
Baboon 185 [4]
Bear (black) 220 [5]
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 [6]
Chipmunk 31
Cow 279 292 286
Deer (white-tailed) 201
Dog (domestic) 58 65 61
Donkey 365
Elephant (Asian) 617
Elephant (African) 645
Elk (wapiti) 240 250 245
European mink 38 76 57 [6]
Ferret (domestic) 41 42 41 [6]
Fox (red) 52
Gerbil 22 26 24 [6]
Giraffe 420 450 430
Goat (domestic) 145 155 150
Gorilla 255 260 257
Guinea pig 56 74 65 [6]
Hamster 16 23 20
Hippopotamus 225 250 237
Horse 330 342 336
Human 259 275 270
Kangaroo 42
Koala 34 [7]
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
Orca 473 567 532 [8]
Otter 60 86 73
Pig (domestic) 112 115 113
Porcupine 210
Puma 90
Rabbit (domestic) 28 35 31 [6]
Raccoon 63
Rat 21 23 22 [9]
Rhinoceros (black) 450
Seal 330
Sea lion (California) 350
Squirrel (gray) 30 40 35
Stripe-faced dunnart 9.5 12 11 [10]
Tiger 105 113 109
Walrus 456
Whale (sperm) 480 590 535
Wolf 60 68 64
Wombat 26 28 27
Zebra (Grant's) 361 390 375

References

Citations
  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". Archived from the original on 2012-07-21. Retrieved 2012-07-14.
  4. Christian R. Abee; Keith Mansfield; Suzette D. Tardif; Timothy Morris, eds. (May 9, 2012). Nonhuman Primates in Biomedical Research: Biology and Management. Academic Press. p. 215. ISBN 978-0-12-397837-0.
  5. University of Michigan. "Ursus Americanus". Retrieved 2013-01-16.
  6. 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)
  7. Larry Vogelnest; Rupert Woods (August 18, 2008). Medicine of Australian Mammals. Csiro Publishing. p. 439. ISBN 978-0-643-09928-9.
  8. Frances M.D. Gulland; Leslie A. Dierauf; Karyl L. Whitman (20 March 2018). CRC Handbook of Marine Mammal Medicine. CRC Press. p. 408. ISBN 978-1-351-38416-2.
  9. The Laboratory Rat, 2nd Edition, Eds. Mark A. Sucklow, Steven H. Weisbroth, and Craig L. Franklin. Page 151.
  10. . A timetable of embryonic development, and ovarian and uterine changes during pregnancy, in the stripe-faced dunnart, Sminthopsis macroura (Marsupialia: Dasyuridae). Journal of reproduction and fertility 91 1 (1991): 213-27. DOI 10.1530/jrf.0.0910213

Sources


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