Social Relationships and Intergroup Transfer of Young Adult Male Japanese Macaques Pre- and Post-Fission of the Katsuyama A Group 論文 Eiko Kato・Yasushi NAMBU・Yasuo Kojima ·1999-01-01 ·『Primate Research』 15(1) pp. 39-52 doi:10.2354/psj.15.39