Map shows hair colours in human populations before european expansion (naturally the dark blue colour indicates jet black hair?). Source: https://t.co/BxUpTZpBuD pic.twitter.com/0URQWUpjtq
— Simon Kuestenmacher (@simongerman600) July 27, 2019
via Twitter https://twitter.com/simongerman600
July 28, 2019 at 12:35AM
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