To get a picture of how Lucy's species, Australopithecus afarensis, moved, scientists compare fossils to the bones of modern humans, as well as to the anatomy ... Lucy's pelvic, hip, and leg ...

The left hip and leg bones from a young female Paranthropus robustus discovered in South Africa show she was extremely short — and ended up as a leopard's lunch.

Live Science reports that bones from one of the smallest human ancestors, who lived two million years ago, were retrieved ...