Primatologists in Indonesia have observed a wild male Sumatran orangutan (Pongo abelii) who sustained a facial wound. Three days after the injury he selectively...
New research from the University of Tübingen demonstrates that nut-cracking can emerge in Sumatran (Pongo abelii) and Bornean (Pongo pygmaeus) orangutans...
The male-specific Y chromosome plays a critical role in sex determination and male fertility. However, because of its repetitive nature, it is frequently...
Orangutans spontaneously make hook tools out of a straight piece of wire, using them to ‘fish’ for food.
Laumer et al show that orangutans can spontaneously...