New book examines the evolution of left-handedness

The question of why some humans are left-handed — including such notable specimens as Plato, Charles Darwin, Carl Sagan, Debbie Millman, Stephen Jay Gould, Noam Chomsky, and Albert Einstein* — has perplexed scientists for centuries. For Southpaws themselves — the affectionate term for lefties — this biological peculiarity has been everything from a source of stigma to a point of pride. But at the heart of it remains an evolutionary mystery — one that Wired contributing editor David Wolman, himself (but of course) a lefty, sets out to investigate in A Left-Hand Turn Around the World: Chasing the Mystery and Meaning of All Things Southpaw (public library).

Wolman, who spoke about the oddity of handedness in a fantastic recent Radiolab episode about conflict, traces 200 years of biological and psychological perplexity as he scours the world for answers, from a Parisian science museum that houses pioneering French surgeon and scholar Paul Broca’s bottled brains to a castle in Scotland that hides clues to the heritability of left-handedness to the neuroscience labs of Berkeley to the golf courses of Japan.

Read the full, original story: The Evolutionary Mystery of Left-Handedness and What It Reveals About How the Brain Works

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