Table 5-1. MEAN GESTATIONS OF SOME MAMMALS
Species Days
Bandicoot 12
Opossum 14
Hamster 18
Mouse, shrew 20
Rat 22
Rabbit 30
Red kangaroo 35
Ferret 40
Squirrel 45
Fox 50
Coyote, dog, wolf 60
Cat, mink, raccoon 65
Guinea pig 68
Chinchilla, lion, pig, porcupine, tiger 115
Bat 120
Ring-tailed lemur 135
Goat, marmoset monkey, sheep 150
Rhesus monkey 170
Western-spotted skunk 220
Chimpanzee, red deer 230
Pronghorn 235
Bear, hippopotamus, moose 240
Armadillo 255
Gorilla 265
Human 270
American bison, cattle, otter 280
Walrus 330
Horse 335
Seal 350
Whale 360
Donkey 365
Camel 400
Giraffe 430
Rhinoceros 500
Elephant 660