During guided outings in a small motorboat along a Malaysian river, we would also see purple herons, endangered storks, and — a highlight of the trip — an orangutan.

Golden Snub-Nosed Monkey: Inhabiting the mountainous forests of China, these monkeys are known for their striking golden fur and snub noses.

A new study finds that primate skulls, including those from threatened species such as orangutans, gibbons and proboscis ...

The zoo announced Thursday that a male baby silvered langur is now on exhibit. He joined a group of adults of the same species — and brought a splash of bright orange to the depths of winter.