Study finds earliest evidence in fossil record for right-handedness

Perhaps the bias against left-handers dates back much further than we thought. By examining striations on teeth of a Homo habilis fossil, a new discovery led by a University of Kansas researcher has found the earliest evidence for right-handedness in the fossil record dating back 1.8 million years.David Frayer, KU professor emeritus of anthropology, is lead author on a recent study published in the Journal of Evolution 
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