San Diego Zoo Global
San Diego Zoo: Orangutan
This resource provides extensive information about the orangutan, including photos, an audio clip and a video. [0:32]
Animal Fact Guide
Animal Fact Guide: Bornean Orangutan
A reference source on the orangutan that features information on its physical characteristics, habitat (with a distribution map), diet, breeding patterns, unique traits and behavior, conservation status, and tips on what you can do to help.
BBC
Bbc: Nature Wildfacts: Bornean Orangutan
This site has a detailed fact sheet on the Bornean orangutan.
Encyclopedia of Life
Encyclopedia of Life: Bornean Orangutan
The Encyclopedia of Life presents this in-depth overview of Bornean Orangutans (Pongo pygmaeus), including their habitats, size, conservation status, and much more. Images of this species and maps of its global distribution can also be...