A few nice animal species images I found:
Orang utan: The Old Man of the Forest
Image by Durotriges
The Borneo species of Orang is classified as Highly Endangered and the Sumatran is Critically Endangered. The Borneo has some 50,000 in the wild, while the Sumatran some 7,000.
Once again this is due to habitat destruction - logging, mining and forest fires have taken a heavy toll on this wonderful ape. So, too, has the trapping of baby orangs for the illegal pet trade.
This is one of the female orangs looked after at Chester Zoo.