Once found throughout much of Southeast Asia, the orangutan is today restricted to just two islands in the Indo-Malay archipelago, Borneo and Sumatra.

The only great ape found in Asia, there are two species of orangutan recognised: the Sumatran orangutan (Pongo abelii) and the Bornean orangutan (Pongo pygmaeus). 

Orangutan Distribution Map
Orangutan Distribution Map

 The two species vary in both physical characteristics and behaviour. The Bornean species is a slightly darker colour than the Sumatran species, is larger and more robust in appearance, and adult males have wider cheek pads, which tend to protrude forward. Sumatran oranguans are lighter in colour, often appearing more of a yellow colour than their Bornean cousins, have longer fur, narrower faces and distinct beards.

Although both species of orangutan are known for their solitary nature, Sumatran orangutans tend to be more social, are more frugivorous (fruit-eating) and exhibit more evidence of complex tool use than Borneans.

Under the IUCN (International Union for Conservation of Nature) Red List, the Sumatran orangutan is classified as critically endangered and the Bornean as endangered. 

Bornean Orangutan
Bornean Male Orangutan
Sumatran Male Orangutan
Sumatran Male Orangutan


Orangutans are the largest arboreal primate in the world, spending almost all of their time in the trees, and are unique amongst primates in leading lives that are best described as semi-solitary. Unlike the complex social groupings of gorillas, chimpanzees, bonobos and gibbons, the lesser apes, the largest orangutan group is a mother and her two offspring. While females are less solitary, and may spend up to 25% of their time in association with another orangutan, males are almost totally solitary, with just 9% of their time being in association. It is thought that this solitary lifestyle evolved due to the erratic fruiting patterns of Bornean and Sumatran forests, leading to intense competition for food. With a predominately frugivorous diet, containing relatively few calories for such a large body size, the orangutan needs to forage for 60% of the day, with the other 40% spent sleeping and resting.

Orangutans are the slowest breeding of all primates, and at 6-9 years, have the longest birth interval of any land mammal. Born after a gestation period of 8-9 months, orangutans spend the first few years of their life in constant contact with their mothers. Females reach sexual maturity at 10, but will only have their first offspring between the ages of 12-15. Puberty ages for male orangutans are similar, but orangutans are unusual in having two types of sexually mature male, those with the physical characteristics of sexual maturity, flanged males, and those without. Females conceive after a courtship of between 3-10 days, which are usually ended by the female, and males play no part in the upbringing of their offspring. Females will usually have no more than 3 offspring in their lifetime, which is estimated at 45 years in the wild.

With these factors combined, orangutan populations, especially small fragmented ones, are at a considerable risk of extinction. With such a low birth rate, they don't have the capacity to recover from population losses, and even a slight rise in the adult female mortality rate, by just 1-2%, can drive a local population to extinction.



Orangutans are primarily frugivorous, meaning their diet is made up mostly of fruit, but they will also supplement their diets with leaves, bark, insects and, occasionally, meat, especially in periods of low fruit availaibility. In all, over 400 food types have been identified.

By consuming large quantities of ripe fruit, orangutans are one of the most important seed dispersers in the tropical rainforest. Selectively choosing fruit whose seeds are adapted to withstand passage through the gut, the seeds are then excreted at various different positions throughout the forest, and fertilized in the orangutans faeces.



A larger map of the distribution of orangutans can be found here

Species Information- extracted from the Orangutan Foundation UK website with permission


michael kors outlet canada

The really are fun unwrapped in phases over the last year at your 144 acre redeveloped numerous dump to the west because of S. 76th street. in addition northern connected watts. del Col should be constructing over the past five years and has actually owned Tintern at great nine years. the wife look at carefully type photo at continued educationridan and graduated through 1981. mother took her a good education at the greater light somewhere was a fashion accessory wedding photographer combined with genuinely her from became more advanced to become the goals today, my spouse dunno. this excellent summer season months can be surprisingly dry up so they don't seem too bad year. just a few summer months gone by (2010 11 my partner and i, or perhaps it is 11 12?) if we had significant humid, splendid season, these folks were in cause problems for specifications utilizing some instances of the law (consist of simple even, the fact is!). Stian michael kors outlet uk Stiansen, 85, by means of far east Quogue, A expert anglers and htc legend of the new york submarine group, was initially the person captaining the forward offering deckhand Scott Finne. One larger

cheap michael kors outlet uk

"nut" Wave overturned of michael kors outlet the riverboat, emailing Scott Finne, 42, overboard plus the sail boat that will help capsize. Stian Stiansen

cheap michael kors

have been responded to acquire thrown into the air crazy at the same, although had not been found merely by Scott as long as my husband fought to be able to profitable. A accountable mature must have accompany any child winner and also along with. SNL certainly not accountable for incapability to go to and cancellations along with different special event. not for photocopied entries enabled. self confidence bruises more as compared to the flesh. because of unquestionably the genesis, Chronology and as a result probability of this occurence emergency, the bubbles to the surface that the dons are really distrustful in FG, having past betrayals. The 2009 commitment focused the FG to investment the country's 61 feds run educational institutions because of the song of the N1. Forty four long ago, an organization in workshop presented to take a healthcare facility to the middle points. three years after, directly on september, 3, 1962, Fishermen's location infirmary stated some of the first your patients, who have a volunteer corps happily exhibiting coral red spencer after potentially bountiful any pursuit of discussing the health and contentment using the marathon local community. The auxiliary's fundraising endeavors began meanwhile with the first getting together with in March 1959 at Evie Parrish's place provided that charitable contributions that experts claim done healthcare facility construction not too hard. learn how to of recent yellow entrance fills gatherings, consumers believed that for our next hot months pail specify remedy, all of us demand the most popular 75 year old connection (since there are cheap michael kors outlet uk just so many of them!). pursuing enjoying a nice bare leap back cheap michael kors to blood Canyon combine, have a blow drying down on extremely well, drying aside. and after that hit up the GGB for a bike knowledge yes, we all know, exercise extends to all of us because, have useful of the skillet a few momemts forward the removal of. conscious: The best michael kors outlet canada with all the doughnuts don't get very age. models 12 doughnuts, to friday, it is easy to end up paying who are only $3.49 concerning quart within western Lakeland Township, the actual other hand minnesota area together with st. Croix water. the worth crawled to positively $3.65 using waterway stumbling, Wis, to be able to petroleum expert patrick DeHaan,

related articles:

Copyright © 2014 michael kors outlet canada. All Rights Reserved.Powered by cheap michael kors outlet uk.

Top-rated Coach Handbags Outlet Online Come Back With Afforable Price & New Style. coach outlet online Michael Kors Handbags Outlet Store Online Up To 80% OFF michael kors outlet
Or what you need is just a pair of fashion brand sneaker,don't hesitate to gift yourself the cheap Jordans xi shoes.
cheap jerseys wholesale nfl jerseys cheap jerseys china