Common Name: Grey Gibbon Scientific Name: Hylobates muelleri
ENDANGERED Grey Gibbon
The Grey gibbon is also known as the Muller’s gibbon and is found on the island of Borneo.
Distribution: Borneo
This small gibbon is unusual in that it shows no sexual dimorphism, both the male and female look the same and have the same colour fur.
Habitat: Forest
Males and females live together in monogamous pairs with their offspring in a close family group. Offspring leave when they are fully mature and go in search of a mate.
Body length: Approx. 45cm
Males defend their family with loud calls, they are especially vocal early in the morning when securing their territory. Vocalisations are also heard between males and females who sing a duet to reinforce their bond.
Weight: 5kg - 6kg Diet: Omnivorous Fruit, leaves, insects.
They spend their days high up in the rainforest. Gibbons move through the forest by swinging from branch to branch but can also be seen walking along large branches on two legs. Their diet consists mostly of fruit but they will also eat leaves, flowers and small insects.