Archaeologists have long been intrigued by stone spheroids, peculiar artifacts scattered across archaeological sites ...

Approximately 900,000 years ago, human ancestors in this region made a leap in stone tool manufacturing ... 900,000 to 780,000 years ago, showcase knapping techniques. Hominins at the site ...

It was Bar-Yosef who encouraged Eren to learn flint-knapping skills. In the process, Eren figured out a new method by which to measure how stone tools were resharpened and tested his hypothesis.

Now, the picture of their activities beyond their rock shelter homes has been expanded by the discovery of these stone workshops, or knapping floors. Knapping is what archaeologists call the ...