Average gestation in days:
Average gestation in days:

Mouse: 19 days

Rabbit: 33 days

Squirrel: 19 days

Kangaroo: 42 days

Cat: 62 days

Dog: 65 days

Lion: 108 days

Beaver: 122 days

Polar Bear: 240 days

Gorilla: 257 days

Human: 280 days

Cow: 283 days

Buffalo: 285 days

Horse: 336 days

Zebra: 365 days

Camel: 405 days

Giraffe: 450 days

Whale: 490 days

Elephant: 600+ days