In the 1950s, when they were discovered, the Ushikawa fossils were identified as parts of a human humerus (upper arm bone) and femur (leg bone), believed to be over 20,000 years old ...

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 ...