The Hainan black-crested gibbon (Nomascus hainanus), also called the Hainan gibbon, is a Critically Endangered species of gibbon found only on Hainan Island, in the Pacific Ocean.

With a total population of just 42 individuals from six separate family groups, the Hainan gibbon (Nomascus hainanus) is the world’s rarest ape and is also one of the world’s rarest mammals.

Hainan gibbons are endemic to China, meaning they are not found anywhere else. The entire population of about 28 individuals are located in a 15 km 2 fragment of suboptimal forest in …

The Hainan black-crested gibbon (Nomascus hainanus) is a Critically Endangered species of gibbon. It was formerly considered a subspecies of the Eastern black crested gibbon from Hòa Bình and Cao Bằng provinces of Vietnam and Jingxi County in …

2015年11月29日 · Some 28 gibbons survive in a six-square-mile (16-square-kilometer) patch of rainforest in Bawangling National Nature Reserve, in western Hainan. They are found nowhere else.

2015年6月10日 · The Hainan gibbon is the world’s rarest ape, rarest primate, and one of the rarest mammal species. Once numbering around 2,000 individuals in the 1950s, the Hainan gibbon underwent a severe decline in the late twentieth century due to habitat loss and hunting, and is now one of the most threatened species in the world, with only an estimated ...

The Hainan Gibbon is the rarest primate on Earth. It is endemic to Hainan Island and is now restricted to Hainan Bawangling National Nature Reserve. Over 2,000 individuals were estimated to live throughout the island in the 1950s, but due to rampant poaching and forest loss, the population declined sharply to less than 10 individuals in the 1970s.

The en­tire pop­u­la­tion of the Hainan black-crested gib­bon, No­mas­cus hainanus, is found in the 300 km^2 Bawan­gling Na­tional Na­ture Re­serve (BNNR) on Hainan Is­land off of the coast of China.

With only 17 Hainan gibbons and 54 eastern black gibbons confirmed, each surviving in just one small forest block, the Hainan gibbon and eastern black gibbon are among the most critically endangered primates in the world.

With its status classified as Critically Endangered, the Hainan black-crested gibbon’s plight is a clarion call for increased awareness and action to safeguard its existence. Historically, the Hainan black-crested gibbon was considered a subspecies of the eastern black-crested gibbon.