"European humans have become 'whiter' in the past 5,000 years, undergoing a distinct change in their DNA due to natural selection, according to scientists."
"caucasity" is the word of the day for me.
Sexual selection is a part of natural selection too. Peacocks' tails don't make them better survivors, but they do get them laid, and thus, that trait is selected for by the peahens. I am just wondering because I can't see the survival benefit of whiteness.
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