Gestation is 18 to 20 days, depending on the strain.
Exactly 21 days
A mouse usually shows after about 15 days, then gives birth after 18-24 days of becoming pregnant.
aproximatley 21 days
Mice can reproduce every 90 days, and have 8 litters every year. The mice gestational period is only 21 days.
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.