A group of male capuchin monkeys kidnapped baby howler monkeys – a different species – on a small island of Panama. Video shows the howler monkeys clinging to the male capuchin monkeys’ backs, but the ...

Spider monkeys live in fluid social groups that split and reform, allowing information about food sources to spread across the population. By moving between subgroups, individual monkeys help create a ...

Gibraltar's macaques are eating soil to soothe stomachs upset by tourist-supplied junk food.

Gibraltar’s famous macaques have started eating soil, a behaviour linked to their access to tourist snacks, according to a ...