On the other hand, some other species of the animal kingdom give birth to their offspring within just a matter of weeks. This article will discover some animals with the shortest gestation periods.

Long gestational periods in animals in usually linked to brain complexity and animal size. advertisement. ... In these cases, gestation keeps the baby in the womb longer as an adaptation.

Animals with shorter gestation periods have multiple babies, like your typical house mouse, a breeding machine that’s pregnant for just 19 days—yielding between 12 to 20 babies every two months.