翻訳と辞書 Words near each other ・ Recipients of the Legion of Merit ・ Recipients of the Lithuanian National Prize ・ Recipients of the Order of the Netherlands Lion ・ Recipients of the Order of the Seraphim ・ Reciprocal ・ Reciprocal (grammar) ・ Reciprocal altruism ・ Reciprocal beneficiary relationships in Hawaii ・ Reciprocal cipher ・ Reciprocal cross ・ Reciprocal determinism ・ Reciprocal difference ・ Reciprocal discovery ・ Reciprocal distribution ・ Reciprocal Fibonacci constant ・ Reciprocal food sharing ・ Reciprocal frame ・ Reciprocal gamma function ・ Reciprocal Guarantee of Two Nations ・ Reciprocal inhibition ・ Reciprocal innervation ・ Reciprocal inter-insurance exchange ・ Reciprocal lattice ・ Reciprocal length ・ Reciprocal liking ・ Reciprocal obligation ・ Reciprocal polynomial ・ Reciprocal pronoun ・ Reciprocal Public License ・ Reciprocal Recording Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Reciprocal food sharing ： ウィキペディア英語版 Reciprocal food sharing Reciprocal food sharing is a form of reciprocal altruism in which an individual animal gives up the food it has foraged to another individual. Food sharing has been observed in a wide range of animals, including insects, birds, cetaceans, vampire bats, and primates.〔Stevens, J.R. and I.C. Gilby. 2004. A conceptual framework for non-kin food sharing. Animal Behavior 67: 603-614〕 It is not always an active behavior; tolerance of theft may also be considered a form of food sharing (Stevens and Gilby). Not only does food sharing occur among members of the same family, but also among non-kin individuals as well, creating an interesting evolutionary question. ==Vampire bats== Vampire bats, which primarily feed on livestock or other vertebrates, must obtain a meal every 48–72 hours or face starvation. On a given night, there are individuals that do not successfully feed. Fortunately for them, a successful individual may regurgitate their meal for the unsuccessful individual. For this trait to persist through evolution, a level of recognition is necessary among individuals. An altruistic bat may refuse to regurgitate blood for another bat that has not given blood to others in the past. The mechanism for this reaction is unknown. 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「Reciprocal food sharing」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.