Sinister business: Lefties have evolutionary boon

Under Darwinian pressure, genes that don't help the struggle to survive get squeezed out of the genetic code, leaving the ones that are fitter.

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<p><a href="http://www.physorg.com/news154937681.html">Sinister business: Lefties have evolutionary boon</a></p> <p>Under Darwinian pressure, genes that don't help the struggle to survive get squeezed out of the genetic code, leaving the ones that are fitter.</p>