UConn Anthropology Department alumnus, David Leslie, is co-author of a new paper published in Science Magazine that examines evidence of symbolic and technological innovation of early Homo sapiens at a series of Middle Stone Age sites in southern Kenya. The evidence shows that hominins at the sites dating to around 320 years ago made prepare cored and points, and extracted red pigments from iron-rich rocks. This evidence has important implications for the social and cognitive evolution of humans