Orangutan (Pongo pygmaeus, Pongo abelii) Fact Sheet, 2003
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Describer (Date): Linnaeus (1760), as Simia pygmaeus
Species: Pongo abelii (Sumatran orangutan)
Subspecies: P. p. pygmaeus, P.p. wurmbii, P. p. morio
Tail Length: none
Pelage: long, flowing, red
Sexual Dimorphism: pronounced
|Distribution & Status||Behavior & Ecology|
Range: Fragmented forests of Sumatra and Borneo (Indonesia)
Habitat: alluvial forests, swamps, mountain foothills
CITES Appendix: I
Population in Wild:
Sumatran orangs: about 14,000 individuals
Locomotion: Primarily arboreal
Activity Cycle: Diurnal; bimodal feeding pattern (morning and afternoon) with resting/napping in between.
Social Groups: Males usually solitary, females with young or solitary, groups of adolescents.
Diet: Fruit is preferred; also leaves, bark, seeds, and insects.
Predators: Humans; possibly clouded leopard and Sumatran tiger.
|Reproduction & Development||Species Highlights|
Sexual Maturity: 6-8 years old
Gestation: 227-301 days
Litter Size: usually one, rarely two
Birth weight: 2-6 kg
Age at Weaning: 5-8 years old
Longevity: 45-60 years in the wild
Feature Facts: Orangutan means "person of the forest" in Malay; the arms are about twice as long as the trunk, spanning 7 feet; orangutans are the most solitary ape; males are dimorphic (two body types)) causing early researchers to call them separate species; the feet are like another set of hands -prehensile with long toes; orangutans might exhibit simple, primitive culture
San Diego Zoo: "Ken Allen," the orang, beloved and infamous for his numerous escape attempts, resided at the San Diego Zoo from 1971 until his death in 2000.
About This Fact Sheet
© 2003-2015 San Diego Zoo Global. Update 2015.
How to cite: Orangutans (Pongo pygmaeus, Pongo abelii) Fact Sheet, 2003. c2003-2015. San Diego (CA): San Diego Zoo Global; [accessed YYYY Mmm dd]. http://ielc.libguides.com/sdzg/factsheets/orangutan
(Note: replace YYYY Mmm dd with date accessed, e.g., 2015 Jan 15)
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