Bornean Orangutan - (Pongo pygmaeus)
- The Bornean Orangutan has a darker, almost chocolate hair covering their bodies.
- The adult males of Borneo have more robust bodies than Pongo Albelii
- Their cheek pads are larger and shaped differently.
- In Borneo it has been observed that the rainforests support less than 1 to 3 Orangutans per square kilometer
- The island of Borneo is the third largest island in the world and it is divided by high mountain ranges.
- These ranges are impassable in most parts as the straits that separate the islands of Sumatra and Borneo.
- This has led to biologists recognizing three major regions of Borneo that have possibly produced three sub-species of Pongo pygmaeus.
- In the east of the island Orangutans have a chocolate colored coat compared to the southwest where the coats are a red-orange color.
- This region of the island is closest to Sumatra, which may explain why the color of these Orangutans is so closely related.
- The Bornean Orangutan has a life span of about 35 to 40 years in the wild; in captivity it can live to be 60. A survey of wild orangutans found that males are typically 75 kg (165 lb), ranging from 50-90 kg (110-199 lb), and 1.2-1.4 m (4-4.7 ft) long
- Females averaging 38.5 kg (82 lb), ranging from 30-50 kg (66-110 lb), and 1-1.2 m (3.3-4 ft) long.
The Bornean Orangutan has three subspecies:
- Northwest Bornean Orangutan P. p. pygmaeus
Sarawak (Malaysia) & northern West Kalimantan (Indonesia)
- Central Bornean Orangutan P. p. wurmbii
Southern West Kalimantan & Central Kalimantan (Indonesia)
- Northeast Bornean Orangutan P. p. morio
East Kalimantan (Indonesia) & Sabah (Malaysia)
Thanks to : bioweb

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