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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 Thorleif Schjelderup-Ebbe ： ウィキペディア英語版 Thorleif Schjelderup-Ebbe Thorleif Schjelderup-Ebbe (12 November 1894 in Kristiania – 8 June 1976 in Oslo)〔( Thorleif Schjelderup-Ebbe – utdypning (Norsk biografisk leksikon) )〕 was a Norwegian zoologist and comparative psychologist. ==Career== Thorleif Schjelderup-Ebbe described the pecking order of hens in his PhD dissertation of 1921.〔Porter G. Perrin (1955) 'Pecking Order' 1927-54 American Speech, 30(4):265–268〕 The work in his dissertation was partly based on his observations of his own chickens that he had recorded since the age of 10.〔The Ape and the Sushi Master, Frans de Waal, 2001〕 The dominance hierarchy of chickens and other birds that he studied led him to the observation that these birds had established the order in which individuals would be allowed to get to food while others would have to wait for their turn. 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「Thorleif Schjelderup-Ebbe」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.