Nearly a million and a half years ago, a group of human relatives appear to have made a meal of one of their own
. All the same, she notes, these hominins may have looked somewhat alike, and the butchers were probably not choosey about who they were eating.
But she didn’t find any bite marks. Instead she found what looked like cut marks on a hominin shin bone, which was discovered in 1970 in the Turkana region of northwestern Kenya by the famed British paleoanthropologist Mary Leakey. , a paleoanthropologist at Colorado State University and co-author of the new study, without saying what she thought they were., a doctoral student in anthropology at Purdue University and study co-author, then made 3D scans of the mysterious marks and compared them to a database of 898 tooth, butchery, and trample marks made in controlled experiments. Their analysis showed that at least 9 of the 11 cut marks had been made by stone tools on the 1.45-million-year-old bone.
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