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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 Cultural history of the buttocks ： ウィキペディア英語版 Cultural history of the buttocks Sexualization of the buttocks has occurred throughout history, especially of the feminine gender. ==Evolutionary significance== Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates. Some anthropologists and sociobiologists believe that breast fetishism derives from the breasts' similarity to buttocks, but instead provide sexual attraction from the front of the body. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. Testosterone discourages fat storage in these areas. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. Evolutionary psychologists suggest that rounded buttocks may have evolved as a desirable trait because they provide a visual indication of the woman's youth and fertility. They signal the presence of estrogen and the presence of sufficient fat stores for pregnancy and lactation. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. Since development and pronunciation of the buttocks begins at menarche and declines with age, full buttocks are also a symbol of youth.〔 Biological anthropologist Helen B. Fisher said that "perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse". Bobbi S. Low et al. said that the female buttocks "evolved in the context of females competing for the attention and parental commitment of powerful resource-controlling males" as an "honest display of fat reserves" that could not be confused with another type of tissue, although T. M. Caro rejected that as being a necessary conclusion, stating that female fatty deposits on the hips improve individual fitness of the female, regardless of sexual selection. 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「Cultural history of the buttocks」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.