Add Yahoo as a preferred source to see more of our stories on Google. Reconstruction of Xigou tool-making. (CREDIT: Hulk Yuan) Old beliefs about early human behavior in East Asia are being challenged ...

At the Xigou site in Henan Province, excavations carried out between 2019 and 2021 uncovered more than 2,600 stone tools. Some show clear evidence of hafting, meaning they were attached to a wooden ...