For decades, scientists believed that bonobos, one of our closest living relatives, were among the most peaceful primates.

The story of primates is a tale of incredible variety and ancient roots, told through the lens of science, DNA, and time itself. These creatures, ranging from massive gorillas to tiny mouse lemurs, ...

The order Primates consists of not only our closest relatives on earth, the seven great apes, but also over 450 species of monkeys, lemurs, lorises, and galagos. Primates are fantastically diverse, ...

Humans perceive emotional expressions displayed by non-human primates and spontaneously mimic these expressions, according to ...

Thirteen million years ago, a group of medium-sized monkeys known for guarding their territory among the treetops with fearsome "howls" started doing something new. These monkeys, among the oldest ...

A new study shows macaque species with more tolerant social systems have larger brain regions linked to emotions and social signals.

Ben Hirsch receives funding from US National Science Foundation. Thanks to our large brains, humans and non-human primates are smarter than most mammals. But why do some species develop large brains ...