Before hominins intentionally chipped stone to make tools, they likely used sharp rocks already shaped by natural forces.

It’s much easier to come up with a world-changing invention if there are examples of it lying around without you having to ...

But how did the production of stone tools—called "knapping"—start? "I don't think it was a 'Eureka!' moment whereby hominins first made a sharp stone flake by intention or by accident and then ...

But how did the production of stone tools -- called 'knapping' -- start? Researchers have proposed a new hypothesis for the origin of stone technology in human evolution. Sharp stone technology ...

But how did the production of stone tools—called "knapping"—start? Three Cleveland Museum of Natural History researchers have ...

But how did the production of stone tools – called ‘knapping’ – start? Three Cleveland Museum of Natural History researchers have proposed a new hypothesis for the origin of stone ...

were able to successfully transfer their knowledge of how to knap stone to knapping bone,” Pobiner said. “To me, this signals that toolmaking was becoming an increasingly important part of our ...