18. What animal has the shortest gestation period? The shortest known gestation is that of the Virginian opossum, about 12 days, and the longest that of the Indian & African Elephant, about 22 months.

18. What animal has the shortest gestation period?

The shortest known gestation is that of the Virginian opossum, about 12 days, and the longest that of the Indian & African Elephant, about 22 months.