For European and American Stone Age peoples, end scrapers served as heavy- duty scraping tools that could have been used on animal hides, wood, or bones. Once the hide was removed from an animal ...

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

pushes back the age of a large bone tool kit by more than a million years. And that may change the way scientists think about when ancient humans started using crafted bone instead of stone as tools.