Hainan Gibbon

About

The Hainan gibbon, scientifically known as Nomascus hainanus, is a critically endangered primate species endemic to Hainan Island in China. Historically, it was considered a subspecies of the eastern black-crested gibbon but is now recognized as a distinct species due to genetic and morphological differences. Males are predominantly black with white or buff cheeks, while females are golden with black patches. Both sexes have long arms and legs, enabling them to swing through trees using brachiation. They primarily feed on ripe fruits, leaves, and insects. Habitat loss and poaching have drastically reduced the Hainan gibbon population, which once numbered over 2,000 in the 1950s. Currently, fewer than 40 individuals remain, making it the world's rarest primate. Conservation efforts, including habitat protection and community engagement, are underway to ensure the species' survival. Despite challenges like low genetic diversity, recent discoveries of new family formations offer hope for recovery. The gibbons form polygynous family groups, with males often pairing with multiple females, and they are known for their distinctive duet songs used for bonding and territorial marking.