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The wide variety of skin colors among humans is primarily due to evolutionary adaptations to different environmental conditions, particularly levels of ultraviolet (UV) radiation. Melanin, the pigment responsible for skin color, provides protection against UV radiation; higher melanin levels are typically found in populations from equatorial regions with intense sunlight, while lighter skin evolved in areas with lower UV exposure to facilitate vitamin D synthesis. Genetic factors and migration patterns also contribute to the diversity of skin tones observed today.

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2w ago

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