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No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary roots in our lineage. And yet, being a leftie does seem to come with some unexpected advantages.
Big thanks to Julio Lacerda (https://twitter.com/JulioTheArtist) for the excellent right-handed Neanderthal illustrations!
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
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