Gibbons Reference Libraries

The Hoolock Gibbons, (Hoolock), are two primate species from the family of gibbons (Hylobatidae). The range of the hoolocks is the most northwestern of all the gibbons, extending from Assam in North-East India, to Myanmar. Small populations live also in eastern Bangladesh and in southwest China. Hoolocks are the second largest of the gibbons, after the Siamang. They reach a size of 24 to 36...

The Siamang (Symphalangus syndactylus), is an arboreal gibbon native to the forests of Malaysia, Thailand, and Sumatra. Its range overlaps with the Lar Gibbon and Agile Gibbon. While the illegal pet trade takes a toll on wild populations, the principal threat to Siamang is habitat loss in both Malaysia and Sumatra. Palm oil production is clearing large swathes of forest, reducing Siamang...

The lar gibbon (Hylobates lar), also known as the white-handed gibbon, is a primate in the Hylobatidae or gibbon family. It is one of the better-known gibbons and is often seen in zoos. The range of the lar gibbon extends from southwest China and eastern Myanmar to Thailand and down the whole Malay Peninsula. It is also present in the northwest portion of the island of Sumatra. The fur...

The black crested gibbon (Nomascus concolor) is also known as the crested gibbon, the black gibbon, the white-cheeked gibbon, or the concolor gibbon. It is a species of gibbon found in India in the Malay Archipelago and Indochina. It is endangered.

The silvery gibbon (Hylobates moloch) is a primate in the Hylobatidae or gibbon family. Their skin is bluish gray colored with a dark grey or black cap. Like all gibbons they do not have a tail and their arms are very long compared to their body. They reach an average weight of 17.64 pounds (8 kg). The silvery gibbon lives exclusively on the island of Java. It inhabits deeply hidden...