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Are chimpanzees evolving in the wild?

        Animals | Primates

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  • Beeman, Perry. "Chimps hunt with spears, ISU researcher finds." The Des Moines Register. Feb. 23, 2007. AID=/20070223/NEWS/702230385/-1/NEWS04
  • "Chimpanzees and humans 'split' later than thought." Reuters. Gulfnews. Feb. 25, 2007.
  • "Chimpanzees found to use tools to hunt mammalian prey." Innovations Report. Feb. 23, 2007. biowissenschaften_chemie/bericht-79494.html
  • "Chimpanzees 'hunt using spears'." BBC News. Feb. 22, 2007.
  • "Spear-Hunter Chimpanzees?" The Associated Press. THV. Feb. 23, 2007.