The Tibetan region is rich with wildlife. Among the many species of mammals are monkeys. Travelers to Kathmandu in Nepal can't help but notice the hundreds of Rhesus monkeys (above) roaming freely around Swayambhunath or "the monkey temple." This Buddhist shrine honors the mythical monkey-faced god, Hunaman, known for his bravery and strength.

Also inhabiting the high-altitude forests are Yunnan snub-nosed monkeys. There are believed to be only 600 or so remaining in the mountains, due to loss of habitat and poaching. Their primary food source are lichens growing on the bark of trees.

The female Yunnan snub-nosed monkeys average about 20 pounds, while the males can can weigh up to 33 pounds.

Yunnan snub-nosed monkey
Science Museum, China

Both monkeys are classified as simians (infraorder Simiiformes), or higher primates which also include apes.

Monkeys are very intelligent creatures. They live in extended family groups (and communties), and communicate by a variety of vocalized sounds. They also respond to facial expressions of emotions, such as fear.