Editing Orgasm (section)

=== Shifts in research ===

The function or functions of the human female orgasm have been debated among researchers.<ref>{{cite book |last1 = Wheatley |first1 = John R |last2 = Puts |first2 = David A |editor1-last = Shackelford |editor1-first = Todd K |editor2-last = Hansen |editor2-first = Ranald D |title = The Evolution of Sexuality |date = 2015 |publisher = Springer International Publishing |chapter = Evolutionary Science of Female Orgasm }}</ref> Researchers have several hypotheses about the role if any, of the female orgasm in the reproductive and therefore evolutionary process.<ref name="Geoffrey Miller" /><ref name="Wallen K, Lloyd EA" /><ref name="Lloyd" /><ref name="Gould" /> The literature started with the argument that female orgasm is a byproduct of shared early male [[ontogeny]], where male orgasm is an [[adaptation]].<ref>Symons, D. (1979). The evolution of human sexuality. Oxford: Oxford Univ. Press.</ref> Research has shifted to investigate and also support the sire-choice hypothesis, which proposes that female orgasm has been shaped by [[natural selection]] to function in the selection of high-quality sires (male parents) for offspring. Therefore, orgasm increases the chances of conceiving with males of high genetic quality.<ref>{{cite journal |last1 = Puts |first1 = D. A. |last2 = Dawood |first2 = K. |last3 = Welling |first3 = L. L. |date = 2012 |title = Why women have orgasms: An evolutionary analysis |journal = Archives of Sexual Behavior |volume = 41 |issue = 5 |pages = 1127–1143 |doi = 10.1007/s10508-012-9967-x |pmid = 22733154 |s2cid = 13125596 }}</ref><ref>{{cite journal |last1 = Ellsworth |first1 = Ryan M. |last2 = Bailey |first2 = Drew H. |title = Human Female Orgasm as Evolved Signal: A Test of Two Hypotheses |journal = Archives of Sexual Behavior |date = July 12, 2013 |volume = 42 |issue = 8 |pages = 1545–1554 |doi = 10.1007/s10508-013-0152-7 |pmid = 23857519 |s2cid = 42000263 }}</ref> Research by [[Randy Thornhill]] et al. (1995) suggests that female orgasm is more frequent during intercourse with a male partner with low [[fluctuating asymmetry]].<ref>{{Cite journal |title = Human female orgasm and mate fluctuating asymmetry |journal = Animal Behaviour |date = January 1, 1995 |pages = 1601–1615 |volume = 50 |issue = 6 |doi = 10.1016/0003-3472(95)80014-X |first1 = Randy |last1 = Thornhill |first2 = Steven W. |last2 = Gangestad |first3 = Randall |last3 = Comer |s2cid = 44103857 }}</ref>