It depends on the species.
Two marsupials share the shortest gestation period. The Virginian opossum and the yapok (an unusual, rare water opossum) have a gestation period period of 12-13 days. On the other end of the scale, tree kangaroos have the longest gestation period, being 39-45 days. Most other marsupials range between 21 and 33 days.
Wombats have a gestation period of 20 to 22 days.The wombat joey then stays in its mother's pouch for around six months.
The puma's gestation period is 91 days long.
The puma's gestation period is 91 days long.
The gestation period of the Springbok is 24 weeks.
Horses have a gestation period of 340 days.
The gestation period of a raccoon is 63 days.
The gestation period for a finch is 11-14 days.
The gestation period of a barracuda is 10 - 12 weeks.
a wolves gestation period is about 63 days yay
Lemurs have a gestation period of 54-68 days.
Goldfish have a gestation period of 5-7 days.
Crabs have an average gestation period of 14 days.