Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all ...

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 ...

Researchers have unearthed the tiny, fossilized teeth of the earliest-known relative of primates, pushing its range further south than ever before and giving us new insights into how it spread through ...

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

For decades, scientists believed that bonobos, one of our closest living relatives, were among the most peaceful primates. Nature seemed to reassure us that, within the world of primates, aggressive ...