Some scientists suggest that Lucy's long arms may have helped her balance while bipedal -- much like the pole of a tightrope walker. With dangling arms and long, slightly curved hands and feet ...

More than three million years after her death, the early human ancestor known as Lucy is still divulging her secrets. In 2016, an autopsy indicated that the female Australopithecus afarensis, whose ...

and her high shoulders and the shape of her torso suggest it would have been difficult for her to swing her arms as we do we running. Because her skeleton was so complete, Lucy gave us an ...