| http://www.w3.org/ns/prov#value | - Human skin hues can range from very dark brown to very pale pink, while human hair ranges from blond to brown to red to, most commonly, black.[6] Most researchers believe that skin darkening was an adaptation that evolved as a protection against ultraviolet solar radiation, as melanin is an effective sun-block.[7] The skin pigmentation of contemporary humans is geographically stratified, and in ge
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