Image credit: © San Diego Zoo Wildlife Alliance. All rights reserved.
Describer (Date): Linnaeus (1760), as Simia pygmaeus
Species: Pongo abelii (Sumatran orangutan)
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
Population in Wild:
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
© 2003-2019 San Diego Zoo Wildlife Alliance. Minor update 2015. Taxonomy and Conservation updates 2017. IUCN errata versions updated 2018.
How to cite: Orangutans (Pongo spp.) Fact Sheet. c2003-2017. San Diego (CA): San Diego Zoo Wildlife Alliance; [accessed YYYY Mmm dd]. http://ielc.libguides.com/sdzg/factsheets/ orangutans
(Note: replace YYYY Mmm dd with date accessed, e.g., 2015 Jan 15)
Disclaimer: Although San Diego Zoo Wildlife Alliance makes every attempt to provide accurate information, some of the facts provided may become outdated or replaced by new research findings. Questions and comments may be addressed to firstname.lastname@example.org.