Potato washing action - potato washing action

Japanese: イモ洗い行動 - いもあらいこうどう
Potato washing action - potato washing action

...Subsequently, behaviors that correspond to subcultures were discovered one after another in Japanese macaque groups, and research on this phenomenon became one of the central themes in Japanese primatology. Famous examples include the potato washing behavior observed in the group on Koshima in Miyazaki Prefecture, and the caramel eating behavior observed in the group on Takasakiyama in Oita Prefecture. These were behaviors that had not been seen in the respective groups until then, but were first acquired by young individuals, and gradually spread to the entire group through particularly close relationships, such as blood relatives and playmates. ...

*Some of the terminology that refers to "potato washing behavior" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…その後,ニホンザルの群れにサブカルチャーに該当する行動が次々と発見され,この現象の研究は日本の霊長類学の中心的テーマの一つとなった。その例としては,宮崎県幸島の群れで見られた〈イモ洗い行動〉,大分県高崎山の群れの〈キャラメル食い〉などが有名である。これらはそれまでそれぞれの群れに見られなかった行動であるが,最初に若い個体によって獲得され,それが血縁関係にある個体や遊び仲間など,とくに親しい関係を通じて徐々に群れ全体に伝播していった。…

※「イモ洗い行動」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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