article_snippet: There are three parts to this puzzle: the expansion of the human brain, the shift to meat consumption, and the ability to develop sophisticated technology to meet the new biological demands,' Professor Barkai said. '
article_snippet: In this thousand-piece puzzle called archaeology, sometimes we find pieces that connect other pieces together. '
article_snippet: The research, published in Plos One, was done in collaboration with Dr Stella Ninziante Cesaro and Dr Cristina Lemorini of La Sapienza, University of Rome, and Dr Ofer Marder of Ben-Gurion University of the Negev.
article_snippet: In this thousand-piece puzzle called archaeology, sometimes we find pieces that connect other pieces together,' said Professor Barkai. '