Gestation and Longevity of Animals

Animal Gestation or
incubation,
in days
& (average)
Longevity,
in years
& (record
exceptions)
Bear 180-2401 15-30 (47)
Cat 52-69 (63) 10-12 (26+)
Chicken 22 7-8 (14)
Cow 280 9-12 (39)
Deer 197-3001 10-15 (26)
Dog 53-71 (63) 10-12 (24)
Duck 21-351 (28) 10 (15)
Donkey 365 18-20 (63)
Elephant 510-7301 (624) 30-40 (71)
Fox 51-631 8-10 (14)
Goat 136-160 (151) 12 (17)
Groundhog 31-32 4-9
Guinea pig 58-75 (68) 3 (6)
Hamster, golden 15-17 2 (8)
Hippopotamus 220-255 (240) 30 (49+)
Horse 329-345 (336) 20-25 (50+)
Human 253-303 (2)
Kangaroo 32-391 4-6 (23)
Lion 105-113 (108) 10 (29)
Monkey 139-2701 12-151 (29)
Mouse 19-311 1-3 (4)
Parakeet (Budgerigar) 17-20 (18) 8 (12+)
Pig 101-130 (115) 10 (22)
Pigeon 11-19 10-12 (39)
Rabbit 30-35 (31) 6-8 (15)
Rat 21 3 (5)
Sheep 144-1521 (151) 12 (16)
Squirrel 44 8-9 (15)
Whale 365-5471
Wolf 60-63 10-12 (16)

Source: James G. Doherty, General Curator, The Wildlife Conservation Society.

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