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 ...

In optimal conditions, elephants may reproduce at a rate of 6 percent. Elephants have the longest gestation period of any animal at 22 months, and twinning is rare, though it does happen. Elephants do ...

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.