The Zoo and Aquarium Association
acknowledges Zoos Victoria for providing
the factsheet information above.
Orang-utan typicaly have reddish-brown hair, distinctive to black or brown of other great apes. Males tend to be bigger than females and dominant adult males have distinctive cheek flanges
Habitat and Distribution
Primary rainforest, including lowland swamp forest
Endangered, to critically endangered, see also separate information from Red List.
Primary threat is habitat loss throughout it’s range, especially clearing of land for Oil Palm Planatations.
About 60% of diet is fruit, also other plant parts (e.g. leaves, shoots, bark) and some animal matter (e.g. eggs, baby birds, reptiles, insects)
Breeding and Lifecycle
Females usually don’t breed until about 15 years of age, and then only breed once every 7-8 years. More frequent breeding may occur if food sources abundant.
Females form loose social groups, typically comprising related animals. Males are on periphery of groups.
Orang-utans renowned for problem-solving and tool use.
Zoos in this region support various conservation initiatives for orang-utans including Don’t Palm us Off, plus various programs including Sumtran Orang-utan Programme.
Rowe, N (1996) – The Pictorial Guide to the Living Primates (Pogonias Press): see Pages 220-223
IUCN Red Data List