A recent study has shown how some species of monkeys have complex social hierarchies and how some are prone to taking risks ...

A young macaque at a zoo in Japan has a fan base that can’t get enough of him. Why are we so invested in the social life of one cute monkey?

Surgeries on primates have become more common in recent years. With a better understanding of how anesthesia affects them, ...

WASHINGTON — A federal health agency faced with a public outcry over its use of animals in medical research will spend another $4.3 million to keep South Carolina’s secretive Monkey Island on life ...

A remote South Carolina island that is home to as many as 3,500 research monkeys poses so many “potentially life-threatening situations” that caretakers must bar the public and prosecute trespassers, ...

A baby spider monkey is starting a new chapter at the Oakland Zoo after she was rescued by authorities during a methamphetamine bust in Solano County earlier this month. On May 6, Solano County ...