This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from ...

New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

Learn how detailed 3D analysis uncovered evidence that upright walking emerged near the very start of the human lineage.

Scientists may have just pushed back the timeline for when our ancestors first started walking upright. A new study suggests ...

The oldest ancestor of humans may be a seven-million-year-old ape, which started walking upright two million years earlier than other hominids.

A new analysis of fossils uncovered in Central Africa offers additional evidence that a human ancestor walked upright 7 million years ago.

“ Sahelanthropus tchadensis was essentially a bipedal ape that possessed a chimpanzee-sized brain and likely spent a ...