Our supposed earliest human relative may have walked on four legs

The femur of Sahelanthropus tchadensis, generally regarded as the oldest known hominin, has finally been scientifically examined. The results suggest it walked on four legs, so may not actually be a close human relative at all

Source:
https://www.newscientist.com/article/mg24833093-600-our-supposed-earliest-human-relative-may-have-walked-on-four-legs/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home