Lucy's pelvic, hip, and leg bones offered more proof. As in a human, Lucy's thighbones (femurs) angle in from the hip toward the knee. Her shinbones (tibiae) then descend straight to the ground ...

In adults, the wear on teeth provides a rough estimate of age, and various diseases may have taken their toll on both teeth and bones. Certain bones of the hands, feet, arms, and legs also ...