Silvery gibbons are easily recognised by their long, fluffy, silvery-grey fur and can often be spotted high up in our Monsoon Forest habitat swinging from tree to tree.

In the wild, these amazing animals can only be found on the island of Java in Indonesia, where less than 2,500 are thought to remain.

Silvery gibbons are listed as endangered and are threatened by habitat destruction which has stripped them of 96% of their original home. They are also lost to the illegal wildlife trade, especially young babies that can be sold in the markets as pets.

Spending most of their lives in the tree tops, silvery gibbon are fantastic climbers and travel in small family groups that consist of a mating pair and their offspring in various stages of development. 

Monsoon Forest - part of our Islands zone - is the UK’s biggest ever zoological development and has been designed to put a major spotlight on issues such as habitat destruction, a threat which is pushing silvery gibbons to the very edge of extinction.

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Interesting facts

Scientific name: Hylobates moloch

Conservation status: They are listed as endangered by the International Union for the Conservation of Nature (IUCN) 

Where they live: They are only found on the island of Java, Indonesia. 

Habitat: The historical deforestation that affected Java still maintains an overriding presence on the landscape, effectively restricting the arboreal silvery gibbon to continuous tracks of forest around mountain and volcano tops.

Diet: Mostly fruit, leaves and grubs 

Threats: Deforestation and habitat loss. Only 4% of its original habitat remains.