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Scientists probe evolutionary origins of permanent human breasts

Researchers are investigating the evolutionary origins of permanent human breasts, a trait unique among mammals. Unlike other species where breast prominence is temporary and linked to nursing, human breasts develop at puberty and remain permanently. Several hypotheses exist, including signaling nutritional health, being a byproduct of fat storage evolution, or a side effect of other evolutionary pressures. The study aims to use comparative genomics, analyzing ancient ape, Neanderthal, and modern human DNA, to pinpoint when and how this distinct human characteristic evolved. AI

RANK_REASON The cluster discusses a scientific paper and research into a biological evolutionary question. [lever_c_demoted from research: ic=1 ai=0.1]

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Scientists probe evolutionary origins of permanent human breasts

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The cluster discusses a scientific paper and research into a biological evolutionary question. [lever_c_demoted from research: ic=1 ai=0.1]
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  1. LessWrong (AI tag) TIER_1 English(EN) · rba ·

    Who Got Breasts First and How We Got Them

    <p><span>It really is Sydney Sweeney’s world, and we’re all just living in it.</span></p><p><span>Human female breasts are an evolutionary mystery along several dimensions. First, breast permanence is unique to humans. All other mammals develop breast prominence during pregnancy …