Men's facial hair, or beards, are not primarily for warmth or sun protection, according to evolutionary biologists. Instead, beards are thought to signal masculinity and potentially impress potential mates, a concept rooted in evolutionary biology and sexual selection. This evolutionary perspective suggests that beards may have developed as a trait to enhance reproductive success. AI
RANK_REASON The item discusses an evolutionary biology perspective on beards, drawing on established theories and figures in the field.
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