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In short, Yes!

The genetic trait the defines a person skin color is decided by a temperature controlled allele. However the effects of a hotter or colder climate generally take upwards of 20 generations to notice a visible difference. Although one case was reported in central Africa by Portuguese explorers in the 1740's where entire villages of dark skinned people changed color to almost albino white during the rainy season. The expedition leader Romero Toromeo noted that "it seemed as though the color washed out when the rain came only to reappear when they [the natives] dried out in the sun once the rains ceased".

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16y ago

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