It depends on the species, temperature, and feeding but tarantulas generally have gestation periods (insemination to eggs laid) of several months. 3-9 months is typical. After the eggs are laid in an egg sac, it is a matter of weeks (about 2-6) before the young Spiders hatch, undergo a first molt, and are ready to leave the sac and eat on their own. This is also dependant on the species and temperature.
Monkeys have a gestational period of 140-150 days.
226-232 days
Monkeys have a gestational period of 140-150 days. During ths time, the embryo develops and recieves nutriants from the mother.
The gestational period for a mammal varies. Smaller mammals tend to have a shorter gestational period than larger mammals.
The gestational period is defined as the period of time from conception to parturition. The average gestational age for humans is 38 weeks.
5 days
Hippopotamus have a gestation period of about 8 months.
A Donkey??
175 Days
16 moons
Sheep have a gestational period (time of pregnancy) of 145 days.
About 63 days.
Five months (150 days)
When the female's egg is fertilized.