There are nearly 200 different species of monkeys found around the world. They come in all shapes and sizes, from the adorable four-ounce pygmy marmoset to the massive 119-pound mandrill—and everything in between.To keep it all straight, monkeys are separated into two major categories: New World monkeys that live in Mexico, Central America, and South America, and Old World monkeys from Africa and Asia. There are a few notable differences; Old World monkeys, for example, don’t have prehensile (gripping) tails, but some are born with special pouches in their cheeks designed for storing food.Whether it's the howler’s call that can be heard from 3 miles away or the bald uakari’s crimson head that reflects health levels, there’s something special about each and every one of these intelligent primates. Here are 18 of the most extraordinary monkeys on Earth.1of 18 Olive Baboon The olive baboon (papio anubis) is an Old World monkey that can boast the most widely distributed habitat in the babo...
