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Stone Age humans were picky about which rocks they used for making tools, study finds

WASHINGTON (AP) — Early human ancestors during the Old Stone Age were more picky about the rocks they used for making tools than previously known, according to research published Friday. Not only did ...
Yahoo

Early humans relied on simple stone tools for 300,000 years in a changing east African landscape

Add Yahoo as a preferred source to see more of our stories on Google. Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago. The ...
The Columbian

Study: Stone Age humans were picky about their rocks

WASHINGTON — Old Stone Age humans were more picky about the rocks they used for making tools than previously known, according to research published Friday. Not only did these early people make tools; ...
Hosted on MSN

Early humans relied on simple stone tools for 300,000 years in a changing East African landscape

Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago. The selection of rock type depended on how easily the material could be ...