Original Articles

• Understanding Ostensive Behavior in Making Inferences of Referential Intentions

  Harumi Kobayashi, Oga Kobori, Yasuo Ihara, Hiroyuki Yaguchi, Tetsuya Yasuda

  1-5

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• Trait Negative Reputational Concerns Among In-Group Members and In-Group Favoritism in Minimal Groups

  Takamasa Kajiwara, Masako Myowa, Nobuhiro Mifune

  6-9

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• Can Reference to Others’ Behaviour Foster a Cooperative Group in Intergroup Conflict Situations?

  Daisuke Nakanishi, Kunihiro Yokota, Yumi Nakagawa, Junichi Igawa

  10-14

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• Ventro-Ventral Copulation by an Adult Male-Female Pair of Japanese Macaques at Arashiyama

  Toshiki Minami

  15-20

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• An Empirical Investigation on the Sexual Selection Hypothesis of Human Phenotypic Diversity: A Test in Okinawa and Mainland Japan

  Saori Nojo, Ryosuke Kimura, Yasuo Ihara

  21-27

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• Apology Cost Is More Strongly Associated With Perceived Sincerity Than Forgiveness

  Yohsuke Ohtsubo, Miyu Higuchi

  28-32

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• Do Humans Possess a Superior Location Memory for Snakes?

  Andrew Gallup

  33-39

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