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]
Regents of the University of Michigan
Animal Diversity Web: Pongo Pygmaeus (Orangutan)
Site contains information on the Pongo Pygmaeus (Orangutan). Includes geographic range, habitat, physical description, reproduction, behavior, food habits, and conservation status as well as other information and pictures.
BBC
Bbc: Nature Wildfacts: Bornean Orangutan
This site has a detailed fact sheet on the Bornean orangutan.
BBC
Bbc: Nature Wildfacts: Sumatran Orangutan
This resource provides information about the Sumatran orangutan.