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Sports Stats Show Why Lefties are Rare, Northwestern University Study  
4/27/2012 7:15:36 AM

Left-handed people are relatively rare because of the balance between cooperation and competition in human evolution, according to a new study of sports data. Representing only 10 percent of the general human population, left-handers have been viewed with suspicion and persecuted across history. The word “sinister” even derives from “left or left-hand.”
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