In the heart of the lush Hainan Tropical Rainforest National Park dwells the Hainan black-crested gibbon (Nomascus hainanus). Also known as the Hainan gibbon, it is the world's rarest primate species.

For instance, one of the main areas where you’ll see the gibbons is in the Chinese province of Hainan. That area alone ...

A female Hainan black-crested gibbon and her baby rest in the canopy of a tropical forest in Hainan province. CHINA DAILY In the heart of the lush Hainan Tropical Rainforest National Park dwells ...