New evidence suggests that upright walking may have begun 7 million years ago, reshaping what we thought we knew about our earliest ancestors.
A newly published study in Science Advances provides compelling evidence that Sahelanthropus tchadensis, a 7-million-year-old hominin, showed early anatomical features of bipedal locomotion. Discovered in 2001 in the desert of Chad, this species has ... [4610 chars]