Some 60 primate species, including baboons, chimpanzees and vervet monkeys, express homosexuality, according to a new study that sheds further light on the evolutionary origin of same-sex intimacy.

"In the baboon group we studied, the more socially connected, higher-ranking individuals usually walk in the middle of the group, while lower-ranking baboons are often out in front or at the rear.

Dr Joselyn Mormile is a conservation scientist who has been working with baboons and communities in South Africa for more than 15 years. Her work has included sanctuary care and veterinary medicine, ...

Encounters between baboons and people are common in parts of South Africa. WhatsApp groups often share stories of baboons raiding a kitchen and stealing all the food. And stories appear in the media ...