This article mentions it in passing: http://news.ycombinator.com/item?id=533743 http://news.ycombinator.com/item?id=533743 "We know roughly when and where far

This article mentions it in passing: http://news.ycombinator.com/item?id=533743 http://news.ycombinator.com/item?id=533743 "We know roughly when and where farming began, because of the archæological evidence: domestication is a shock to the physiology of man and beast. The skeletons of people change, they temporarily grow smaller and less healthy, as the human body adapts to a protein-poorer diet and a more arduous lifestyle. Likewise, newly domesticated animals get scrawnier at first." I'm sure some google wizardry could find a real source.