Sumatran Orangutan 
(Pongo abelii)

Morfology : 
  •  An orangutan's standing height averages from 4 to 5 ft (1.2 to 1.5 m)
  • On average, an orangutan weighs between 73 to 180 pounds (33 to 82 kg).
  • Males can weigh up to 250 lb (110 kg) or more. 
  • The largest males have an arm span of about 7.5 ft (2 m).
  • Orangutans have a large, bulky body, a thick neck, very long, strong arms, short, bowed legs, and no tail.  
  • The orangutan has a large head with a prominent mouth area.
Habitat : 
  • Orangutans inhabit tropical forests. 
  • Sumatran orangutans inhabit northern Sumatra in isolated forest areas north of Lake Toba.
Classification : 
Kingdom  : Animalia
Phylum     : Chordata
Class        : Mammalia
Order       : Primates
Family      : Hominidae
Subfamily : Ponginae
Genus      : Pongo


Behavior :
  • Orangutans are the most arboreal of the great apes, spending nearly all of their time in the trees. Every night they fashion sleeping nests from branches and foliage.  
  • Orangutans are not true knuckle-walkers, and are instead fist-walkers.
  • Orangutans have even shown laughter-like vocalizations in response to physical contact, such as wrestling, play chasing, or tickling.
  • Orangutans do not swim.
  • Orangutans spend up to six hours a day eating or foraging for food. 
Diet :
  • Fruit makes up 65–90 percent of the orangutan diet. Fruits with sugary or fatty pulp are favored.   
Conservation Status :
  • The Sumatran species is critically endangered and the Bornean species of orangutans is endangered according to the IUCN Red List of mammals, and both are listed on Appendix I of CITES.