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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Female Sabotage ： ウィキペディア英語版 Female Sabotage Female sabotage is an evolutionary theory regarding the propensity of certain females to select "burdened" males of their species for mating. ==History== Soon after Charles Darwin published his theory of Natural Selection, he was faced with a puzzle. If natural selection suggests "survival of the fittest," then why do some males have traits that detract from their survival? For instance, the peacock grows a colorful, cumbersome tail that not only attracts predators, but makes it difficult for him to escape those predators. Similarly, the buck grows enormous antlers which are heavy to carry and can easily become tangled in branches, interfering with effective escape from pursuing hunters. Of course, Darwin knew that there was more to natural selection than simple fitness. An equally important part of the struggle of life regards reproduction. In this case, the question becomes, "Why would a female burden her offspring with dangerous traits by mating with a similarly burdened male?" Noting that the males with burdensome traits are almost entirely those in polygamous species, where a minority of males generally mate with many females, Darwin had an insight. He realized that if females found these male burdens more "attractive," and if that attractiveness resulted in more matings by burdened males, then the increase in matings of a few sons might offset the death of many other sons as a result of the burden. In effect, if the success of the surviving males produced enough offspring to cover more than the loss of potential offspring from their lost brothers, then the female who mated with a burdened male had chosen correctly. 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「Female Sabotage」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.