castiels-time-traveler: mapsontheweb: Map of the World by Natural Skin Color natural selection. people with darker skin are selected for in areas near the equator, where the melanin that causes the darker color protects them from radiation and protects

brown | brown eyes gifs | JenSelter

castiels-time-traveler: mapsontheweb: Map of the World by Natural Skin Color natural selection. people with darker skin are selected for in areas near the equator, where the melanin that causes the darker color protects them from radiation and protects

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