Bornean orangutans (Pongo pygmaeus) currently inhabit only the island of Borneo, excluding the southeastern portion of Borneo. Fossil evidence indicates that their past distribution included much of Southeast Asia. Pongo pygmaeus was until recently considered the only orangutan species. Sumatran orangutans (Pongo abelii) are now considered a separate species.
Biogeographic Regions: Oriental; Oriental :: Native
Other Geographic Terms: Island endemic