The oldest distinguishing feature between humans and our ape cousins is our ability to walk on two legs – a trait known as bipedalism. Among mammals, only humans and our ancestors perform this ...

More than 1 million years before the early hominin known as Lucy was striding across the Afar region of Ethiopia, the lesser-known Ardipithecus ramidus roamed approximately the same area. Now, a team ...

New fossil discoveries in eastern Africa offer a rare glimpse of one of the oldest members of humanity’s evolutionary family. More than 4 million years ago, this upright-walking hominid—dubbed ...

Ardipithecus ramidus, a four million year old ancestor of humans, was so important that it was declared the biggest scientific breakthrough of 2009. That might still be true – but we might also be ...

Sileshi Semaw from the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), is coauthor of a paper published in the Journal of Human Evolution about a large series of fossil ...