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Sexual selection in humans concerns the concept of sexual selection, introduced by Charles Darwin as an element of his theory of natural selection, as it affects humans. The role of sexual selection in human evolution has not been firmly established although neoteny has been cited as being caused by human sexual selection.〔(Neoteny and Two-Way Sexual Selection in Human Evolution: A Paleo-Anthropological Speculation on the Origins of Secondary-Sexual Traits, Male Nurturing and the Child as a Sexual Image )〕 It has been suggested that the human brain is itself a product of sexual selection, i.e. it has developed as a sexual ornamentation to be used in courtship rather than for survival itself,〔(SEXUAL SELECTION AND THE MIND )〕 and that it has developed in ways outlined by Ronald Fisher in the Fisherian runaway model.〔Fisher, R.A. (1930) The Genetical Theory of Natural Selection. ISBN 0-19-850440-3〕〔Edwards, A.W.F. (2000) Perspectives: Anecdotal, Historial and Critical Commentaries on Genetics. The Genetics Society of America (154) 1419:1426〕〔Andersson, M. (1994) Sexual selection. ISBN 0-691-00057-3〕〔Andersson, M. and Simmons, L.W. (2006) Sexual selection and mate choice. Trends, Ecology and Evolution (21) 296:302〕〔Gayon, J. (2010) Sexual selection: Another Darwinian process. Comptes Rendus Biologies (333) 134:144〕 Fisher also stated that the development of sexual selection was "more favourable" in humans. ==General hypotheses== Some hypotheses about the evolution of the human brain argue that it is a sexually selected trait, as it would not confer enough fitness in itself relative to its high maintenance costs (a quarter to a fifth of the energy and oxygen consumed by a human).〔 〕 Sexual selection's role in human evolution cannot be definitively established, as features may result from an equilibrium among competing selective pressures, some involving sexual selection, others natural selection, and others pleiotropy. In the words of Richard Dawkins: : "When you notice a characteristic of an animal and ask what its Darwinian survival value is, you may be asking the wrong question. It could be that the characteristic you have picked out is not the one that matters. It may have "come along for the ride", dragged along in evolution by some other characteristic to which it is pleiotropically linked."〔Richard Dawkins (2009). ( ''The Greatest Show on Earth: The Evidence for Evolution'' ). Free Press. ISBN 1416594787, ISBN 978-1416594789.〕 The German anthropologist Ferdinand Fellmann has proposed a modified form of sexual selection, termed "emotional selection," as the pivot in human emotional evolution. The survival edge is due to the talent of humans for long-term mating, which allows them to have feelings about feelings: the origin of human consciousness. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sexual selection in humans」の詳細全文を読む スポンサード リンク
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