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We've got two perfectly good hands attached to two perfectly good arms, so why do most people prefer to use one over the other for common tasks?
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David Wolman's "A Left Hand Turn Around the World" http://amzn.to/1wYqOS2 (lots more references in there!)
Chris McManus' "Right Hand, Left Hand" http://amzn.to/1umztyL
The best collection of the science of handedness on the internet: Right, Left, Right, Wrong - http://www.rightleftrightwrong.com/index.html
Genetic link between handedness and body asymmetry: http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003751
A gene associated with handedness and schizophrenia: http://www.nature.com/mp/journal/v12/n12/abs/4002053a.html
Genetic theories of handedness: http://www.rightleftrightwrong.com/theories_genetic.html
Produced for PBS Digital Studios
Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editing/Motion Graphics Dalton Allen - Post-production intern John Knudsen - Gaffer
Theme music: "Ouroboros" by Kevin MacLeod
Stock images via Shutterstock
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