When I was in Japan at one of their museums they had the leg bones from an early settler out to compare to those of a more recently decease person from Japan.

When I was in Japan at one of their museums they had the leg bones from an early settler out to compare to those of a more recently decease person from Japan. They wanted to highlight that the leg bones took on structural differences in ancient times because of the type of physical work they endured. The only modern humans that get these features now are Olympic athletes.