Justin Bieber has been given a month to provide German authorities with the papers they need to release his pet monkey "Mally".

Pet owners in Asia are snapping up ‘pocket’ primates provided by traders in South Africa. Fiona Macleod reports

Outlook for monkeys, apes and other primates has dramatically worsened. Nearly half of all primate species are threatened with extinction.

Nearly half of all primate species are now threatened with extinction, according to a comprehensive new evaluation.

James Randerson, given exclusive access to a research facility, talks to scientists about their experiments on monkeys.

Scientists have discovered a protein in monkeys that can block infection by the virus that causes Aids.