Only About 2% Of Adults Are Natural Blondes — An Evolutionary Biologist Explains Why
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Natural blond hair is rare worldwide. Here's how sunlight, genetics and childhood darkening explain it, and why blondness evolved twice in different populations.
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https://www.forbes.com/sites/scotttravers/2026/10/31/only-about-2-of-adults-are-natural-blondes---an-evolutionary-biologist-explains-why/
