This undated photo provided Monday, Aug.12, 2013, by Abri Peyrony Project shows the most complete lissoir, or smoothing tool made of bone, smaller that a person's hand at just a few centimeters long, ... more 
This undated photo provided Monday, Aug.12, 2013, by Abri Peyrony Project shows the most complete lissoir, or smoothing tool made of bone, smaller that a person's hand at just a few centimeters long, found during excavations at the Neanderthal site of Abri Peyrony. Researchers have found what they say are the first examples of specialized bone tools made by Neanderthals, a discovery that will add to debates about how advanced Neanderthals were and how much contact they had with modern humans. The discovery is being discussed by scientist, researchers and academics after the findings were published online Monday by the Proceedings of the National Academy of Sciences. (AP Photo/Image courtesy: Abri Peyrony Project) less 
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Associated Press | Photo By Image courtesy: Abri Peyrony Project
Mon, Aug 12, 2013 3:34 PM EDT