The well-preserved bone tools, measuring up to around 16 inches (40 centimeters), were likely made by breaking off the thick ends of leg bones and using a stone ... trampling or gnawing by other ...

The excavation of bone tools at Olduvai Gorge in Tanzania expands the range of ancient hominids’ cultural innovations.

extending out of the skin and connecting to the prosthetic limb. Jarem Frye is missing most of his left leg. When he was 14, Frye was diagnosed with bone cancer. The next year, doctors amputated ...

The well-preserved bone tools, measuring up to around 16 inches (40 centimeters), were likely made by breaking off the thick ends of leg bones and ... animals — ruling out the possibility ...