For decades, humans have prided themselves on being the only species capable of complex medical care stitching wounds, ...

In this photo provided by researchers, a wild male chimpanzee drums on a buttress tree while producing a pant-hoot call as he joins his groupmates in the Budongo Forest of Uganda in May 2017.

Fifty three-year-old chimpanzee Cassius has been euthanased at Rockhampton Zoo, after suffering from suspected arthritis and dementia. The zoo says he was the oldest male chimpanzee in ...