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6:26 AM | January 21, 2013
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The amount of melanin found within our skin has long been a source of division for humans culturally, but anthropologist Nina Jablonski of Penn State tells the story of how human skin color unites us all biologically. It's become one of my favorite stories to share as it relates to nutritional biology: More pigment was naturally selected because it acted as a sunscreen needed to protect against DNA damage and destruction of folate, needed for reproduction. Depigmentation was selected for […]

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