article_snippet: The researchers studied three tools found in the Revadim quarry in Israel - a flake, biface or 'handaxe' and scraper.
article_snippet: The researchers studied three tools: a flake, biface (pictured) and scraper.
article_snippet: The paper said three tools: a flake, biface (pictured) and scraper would have also been used to process hides.
article_snippet: In the case of the elephant, for example, Prehistoric peoples would have needed to use three tools: a flake, biface (pictured) and scraper to manage such a challenging task. '
article_snippet: The knowledge of how to make three tools: a flake, biface (pictured) and scraper was precious, and must have been passed along from generation to generation, because three tools: a flake, biface (pictured) and scraper were reproduced the same way across great territorial expanses and over hundreds of thousands of years,' said Professor Barkai. '