Sharp stone technology chipped over three million years allowed early humans to exploit animal and plant food resources. But how did the production of stone tools -- called 'knapping' -- start?

Michigan Tech MSE has decided to strongly emphasize hypothesis-based research in the PhD qualifier. A hypothesis is a proposed explanation for a phenomenon. For a hypothesis to be put forward in ...

The new hypothesis proposes that for a substantial ... processes like animal trampling of rocks. However, previous research suggested that naturally sharp rocks that could have been used as ...