Janice McLean, a Kansas University master's student, examines a stone flake found at an archaeological dig site near Kanorado. The flake, possibly a piece of a tool, is typical of the finds at the ...

Early humans likely used naturally sharp rocks before making their own tools, a new hypothesis suggests, potentially pushing ...

“The magic is being able to touch these stone tools for the first time, after 3.3 million years,” Harmand told NPR. The paper describes about 150 stones and flakes from west of Lake Turkana in the ...

Blade flakes were "pre-forms" that could be fashioned ... For European and American Stone Age peoples, end scrapers served as heavy- duty scraping tools that could have been used on animal hides ...

Bevelled edge: An edge that is slanted. Biface: A flaked stone tool that has been modified or retouched on both sides. Blade: A cutting tool made from a flake that’s length is at least twice its width ...

Blade flakes were "pre-forms" that could be fashioned ... For European and American Stone Age peoples, end scrapers served as heavy- duty scraping tools that could have been used on animal hides ...