So, what animal has the longest gestation period? Here are the 5 longest periods in the animal kingdom. (Image Credit: Matteo photos/Shutterstock) Golden alpine salamanders live in cold climates ...

This animal’s diet consists mostly of fruits ... Spider monkeys have a long gestation period, from seven to 7.5 months. They don’t have a single breeding season, but an individual spider ...

Female tree kangaroos give birth to one offspring after a gestation period of approximately 44 ... Matschie's tree kangaroos are fairly solitary animals. Females and males have non-overlapping ...

Some sharks and even a salamander retain their fetuses for years sometimes before giving birth. So, what animal has the longest gestation period? Here are the 5 longest periods in the animal kingdom.