I jogged two miles this morning. I’m not bragging—deep down inside I know my hunting predecessors must be terribly ashamed of me. My knees hurt. My back ached. My shins burned. I couldn’t imagine running down and killing an energetic tortoise on foot, let alone a healthy antelope or deer. But according to many word-of-mouth accounts and a growing mound of anthropological evidence, that’s exactly what some hunters did for thousands of years.
“In...