Early humans were regularly using animal bones to make cutting tools 1.5 million years ago. A newly discovered cache of 27 carved and ...

A newly discovered cache of 27 carved and sharpened bones from elephants ... a stone to knock off flakes from the remaining bone shaft. This technique was used to create one sharpened edge and ...

A newly discovered cache of 27 carved and sharpened bones from elephants ... a stone to knock off flakes from the remaining bone shaft. This technique was used to create one sharpened edge and ...