Monkeys are broken down into two sub-categories: Old World and New World. Old World monkeys are found in Africa and Asia whereas New World monkeys are found in Central and South America.

These vocal primates are the biggest of all the New World monkeys. Unlike Old World monkeys, howlers and other New World species have wide, side-opening nostrils and no pads on their rumps.

Just take a look. A trio of golden snub-nosed monkeys, a first-class protected animal in China, is photographed in Shaanxi, huddled together in the snow to keep warm. Minqiang Lu, China ...