king colobus monkeys and crab-eating macaques. They found that the nasal aperture in male proboscis monkeys is 29 per cent ...

The sole adult male was nearly twice as big as the others ... Slow to leap, and an easy target for poachers, the Pennant’s red colobus ranks among the world’s most endangered primates.

Melbourne Zoo was the scene of a long-awaited family reunion as they welcomed their newest residents: a pair of adorable Eastern black-and-white colobus monkeys.The zoo said that Colby, a male, was ...

Niger Delta red colobus monkeys (Piliocolobus epieni) are endemic to the marshy woodlands of the Niger Delta, Africa’s largest mangrove forest.When the species was first described in the 1990s ...