Syrian hamsters typically have the shortest gestation period of just 16 days. For Chinese and Russian Dwarf hamsters, on the other hand, pregnancy could last for about 18 to 21 days.

Smaller animals tend to have smaller gestational periods. This is usually due to the size of the animal. It takes less time to develop a smaller animal in the womb.

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.

TRUE Giraffes are renowned for their height, grace, and distinctive appearance, but they’re also remarkable for having one of the longest gestation periods among land mammals. Scientific studies ...