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[[File:V46letifau341.jpg|thumb|Women [[Sexual harassment|sexually harassing]] men with their frontal [[lordosis]].]] | [[File:V46letifau341.jpg|thumb|Women [[Sexual harassment|sexually harassing]] men with their frontal [[lordosis]].]] | ||
The permanently swollen breasts in human females are ''unique'' among primates. In other primates, breasts only swell during breastfeeding which is accompanied by temporary infertility.<ref name="lifehistory">https://georgefrancis.substack.com/p/intelligence-and-the-evolution-of</ref> However, full human breasts might mimick ''estrous swellings of the buttocks'' which signals sexual readiness in primates.<ref>https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1012&context=socanth_honproj</ref> | The permanently swollen breasts in human females are ''unique'' among primates. In other primates, breasts only swell during breastfeeding which is accompanied by temporary infertility.<ref name="lifehistory">https://georgefrancis.substack.com/p/intelligence-and-the-evolution-of</ref> However, full human breasts might mimick ''estrous swellings of the buttocks'' which signals sexual readiness in primates.<ref>https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1012&context=socanth_honproj</ref> | ||
Thus, women's perma-swollen breasts might still signal sexual readiness in men's hindbrains. This way women can conveniently gain sexual attention whenever they need it, e.g. to secure their mate's continued investment, to attract a new mate or for near-term resource accrual from [[pump and dump|short-term sexual encounters]]. Such strategies are particularly useful in Nothern [[life history|slow life environments]], where boobs indeed appear to have a | Thus, women's perma-swollen breasts might still signal sexual readiness in men's hindbrains. This way women can conveniently gain sexual attention whenever they need it, e.g. to secure their mate's continued investment, to attract a new mate or for near-term resource accrual from [[pump and dump|short-term sexual encounters]]. Such strategies are particularly useful in Nothern [[life history|slow life environments]], where boobs indeed appear to have a greater sexual significance (compared to booties).<ref name="lifehistory"></ref><ref>https://broadblogs.com/2010/11/04/men-aren%E2%80%99t-hard-wired-to-find-breasts-attractive/</ref> | ||
The curved arch from collarbone to the boobs further reminds of the ''[[lordosis]] posture'', thus boobs act as a ''frontal'' or ''secondary lordosis'', and possibly evolved as self-mimicry of the buttocks when humans evolved their upright posture and [[gait]]. | The curved arch from collarbone to the boobs further reminds of the ''[[lordosis]] posture'', thus boobs act as a ''frontal'' or ''secondary lordosis'', and possibly evolved as self-mimicry of the buttocks when humans evolved their upright posture and [[gait]]. | ||