Human Skin Color
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Human skin color can range from almost black (due to very high concentrations of the dark brown pigment melanin) to nearly colorless (appearing pinkish white due to the blood vessels under the skin) in different people. Skin color is determined primarily by the amount and type of melanin, the pigment in the skin. Variation in skin color is largely due to genetics. As a general pattern people with ancestors from tropical regions and higher altitudes (hence greater UV light exposure) have darker skin than people with ancestors from subtropical regions. This is far from a hard and fast rule…mehr

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Human skin color can range from almost black (due to very high concentrations of the dark brown pigment melanin) to nearly colorless (appearing pinkish white due to the blood vessels under the skin) in different people. Skin color is determined primarily by the amount and type of melanin, the pigment in the skin. Variation in skin color is largely due to genetics. As a general pattern people with ancestors from tropical regions and higher altitudes (hence greater UV light exposure) have darker skin than people with ancestors from subtropical regions. This is far from a hard and fast rule however, because many light skinned groups have managed to survive at the equator by way of social adaptation. The same can be said of dark skinned groups living at subtropical latitudes.