In conclusion, we know a gene causes handedness, although we don’t know which, and we know a large right-handed dominance emerged in Homo although we don’t know when or why. Kind of a non-answer to the question really, but I think that’s allowed since it was a non-question to begin with.
Scooped by
Sakis Koukouvis
onto Science News June 13, 2012 5:05 PM
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