|The hoolock gibbons, also known as hoolocks, are the species from the family of the gibbons. In India, Hoolock gibbons are found throughout south of the river Brahmaputra in the states of Assam, Arunachal Pradesh, Meghalaya, Manipur, Mizoram, Nagaland and Tripura. Hoolocks are the second largest of the gibbons.
|Hoolocks grow to a height of 60- 90 cm and they weigh around 6- 9 kg. The males are black colored with remarkable white brows, while females have a grey-brown fur, which is darker at the chest and neck. White rings around the eyes and around the mouth give their face a mask-like appearance.
The hoolock gibbon is arboreal and diurnal. The Hoolock is frugivorous in nature. Its diet contains fruit, leaves, flowers, tender buds and insects, with mostly ripe fruit, young leaves and infected figs.