World Science for November 15, 2010 reported on disagreements about claims that ancient humanoids butchered meat.
But in the new work, Manuel Dominguez-Rodrigo of Complutense University in Madrid and colleagues concluded that the “tool marks” were more likely scratches caused by animals trampling across the bones, which at some point were buried in shallow, sandy soil. The researchers compared the original findings with previous studies that have examined natural processes, such as trampling, which often leave marks on fossil surfaces that can be mistaken for tool marks.