DNA analysis indicates that we are all descended from a single ancestral group of Africans (Allmann 2002). If we are all “out of Africa,” why are there so many different skin colors?

To complete your group’s analysis of the case, read the article “Skin Deep” (Jablonski and Chaplin 2002). Then, using information from the article, write a one-page essay that answers the above question, discussing both the “sunscreen” and “vitamin” hypotheses.

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