Unlike Old World monkeys, howlers and other New World species have wide, side-opening nostrils and no pads on their rumps. Howlers also boast a prehensile tail. They can use this tail as an extra ...

Conservationists hope the birth of a monkey will help raise awareness of a "vulnerable" breed threatened by deforestation of ...

Voice of a forest, the red-eared monkey is the most abundant of Bioko Island’s 11 primate species. At least 12,000 years of isolation from mainland Africa has helped produce a one-of-a-kind ...

Monkeys are used in animal research only if a particular phenomenon cannot be studied on any other species of animal, such as mice, fish or fruit flies. In the course of evolution, similar structures ...