Cadaver Experiment Suggests Human Hands Evolved for Fighting

Just in time for Halloween, gore-resistant scientists are swinging frozen human cadaver arms like battering rams — in the name of science, of course. The researchers say their macabre experiments support the hotly debated idea that human hands evolved not only for manual dexterity, but also for fistfights. David Carrier, a comparative biomechanist at the University of Utah, and his colleagues have controversially suggested that fist fighting might have helped to drive the evolution of not