Imposing looking by its posture and its look but yet the gorilla is a harmless animal. This frugivorous, greyish mammal appears forming a line down the middle of his back. This is why it is also called "silverback". With a height of about 6 feet and a weight of 350 pounds, the gorilla is the largest and strongest of all monkeys. His longevity is about 45 years, he lives in a group as a family, and as in any family, it is the oldest who runs it. It is a threatened animal, very sought after for its expensive skin.