Long-term research on Japanese macaques has shown that their society possesses some “rules.” One of the rules is that of the “dominance of the youngest siblings.”* There are clear dominance relationships between individuals, and, among females, younger siblings are generally dominant over older siblings. The relationships are developed by mothers helping their younger daughters in sibling conflicts, and the relationships remain even after the mothers disappear and the siblings become adults.
■References (Books, papers, Web articles, etc.)
『ニホンザルの生態』 河合雅雄 （河出書房新社、1969）
『人類進化論——霊長類学からの展開』 第六章・第一節 攻撃と和解 山極寿一 （裳華房、2008）
川村俊蔵．1958．「箕面谷B群にみられる母系的順位構造：ニホンザルの順位制の研究」Primates. 1(2):149-158.
*Shunzo Kawamura, one of the founders of primatology and the first professor at the Kyoto University Primate Research Institute, proposed the rule of dominance of the youngest siblings in Japanese macaque societies. He is also known as the first researcher in the world to report cultural behaviors such as potato washing. [Editorial note]
★If you interested in this text, please have the following ebook at hand. For that, Click on the URL below.
https://society-zero.com/icardbook/011/index.html
★This article is a piece of "knowledge card" that makes up iCardbook, "Evolution of Human Sociality(Juichi Yamagiwa, Shun Hongo)"
iCardbook, a card-type specialized book that organizes “Knowledge Cards” is a new form of book in the smartphone age.
■iCardbook Benefits:Good value for reading
・you can read it quickly in your pocket of time, e.g. commuting
・You can immediately understand the "drawing " in the author's head
・Amazon Prime members can read for free
◎About iCardbook(english)
https://society-zero.com/icard/icardbookenglish
◎About iCardbook(japanese)
https://society-zero.com/chienotane/archives/5067
■The References list of “Evolution of Human Sociality”
