Distribution: Mt Gaoligong in southwestern China's Yunnan Province Myanmar, Bangladesh and India
The body length of the Hoolock Gibbon is in the range of 44.5-58cm and it weighs 7-8kg. The males are black and brown, while the females are yellow and brown. Their white eyebrows are the most notable feature. Hoolock Gibbons live in small groups on trees in tropical primitive forests almost all year around. Their staple foods are mature fruits and tender leaves. They also feed on insects, birds' eggs and fledglings. The Hoolock Gibbon can live 20-25 years.
They are listed as first grade nationally protected animals.