Why human ancestors made stone tools from the same quarries for hundreds of thousands of years

Scientists have solved the mystery of why ancient human ancestors made stone tools from the same quarries for hundreds of thousands of years.

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Hula Valley ,Ha Afon ,Israel ,Lebanon ,Barkai ,H Efa ,Galilee ,Maayan Baruch ,Meir Finkel ,Dana Ackerfeld ,Tel Aviv University ,Professor Ran Barkai ,Old Stone Age ,Upper Galilee ,Gesher Benot Ya Akov ,Ma Ayan Baruch ,Tel Aviv ,