Original Articles

• A Test of an Evolutionary Hypothesis of Violence against Women: The Case of Sex Ratio

  Emily A. Stone

  1-3

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• We Can’t Return Evil for Good: The Comparison between Direct and Indirect Reciprocity

  Yuma Shiraki, Tasuku Igarashi

  4-7

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• Violence and warfare in prehistoric Japan

  Tomomi Nakagawa, Hisashi Nakao, Kohei Tamura, Yui Arimatsu, Naoko Matsumoto, Takehiko Matsugi

  8-11

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• No Support for the Watching Eyes Effect Across Three "Lost Letter" Field Experiments

  Zoi Manesi, Thomas V. Pollet

  12-15

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• Are Multiple Minimal Outgroup Males Readily Associated with Threat?

  Florian van Leeuwen, Tadeg Quillien, Pascal Boyer

  16-19

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• Effect of being conscious of others on moral condemnation

  Ryo Oda

  20-23

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