Experts unearthed it from a layer dating approximately 115,000 to 130,000 years old and originally mistook the bone for a bear’s rib. Seventy years later, the bone is getting a reexamination.

Initially, experts believed the bone was a bear’s rib. Now, seven decades later, a team of researchers realized it is actually a radial bone from the left foreleg of a juvenile bear. They used ...