and butchering. However, the size of the choppers did not suggest that it could be powerful enough to actually kill animals like the hippopotamus. L. Binford then proposed that animals were killed by carnivores and Homo was just a scavenger. This theory was tested by P. Shipman and R. Potts. Since the cut marked bones were tooth marked and there were no carcasses or disarticulation of any leftovers, the evidence pointed at the idea of Homo being a scavenger. See also Oldowan Hand Axe References External links https://web.archive.org/web/20130914145745/http://www.ou.edu/cas/archsur/OKArtifacts/choppers.htm https://web.archive.org/web/20130820225555/http://anthro.palomar.edu/homo/homo_4.htm http://hearstmuseum.berkeley.edu/blog/chopper http://anthromuseum.missouri.edu/minigalleries/handaxes/intro.shtml Lithics Archaeological artefact types