If a fish can pass the mark test, what are the implications for consciousness and self-awareness testing in animals?

• Masanori Kohda ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: kohda.tanganyika@gmail.com (MK); lyndonjordan@gmail.com (ALJ)

  Affiliation Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan

  http://orcid.org/0000-0001-9598-0088

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• Takashi Hotta,

  Roles Data curation, Formal analysis, Methodology, Writing – original draft

  Affiliation Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan

  http://orcid.org/0000-0001-7400-941X

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• Tomohiro Takeyama,

  Roles Conceptualization, Data curation, Formal analysis, Writing – original draft, Writing – review & editing

  Affiliations Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan, Department of Biosphere-Geosphere Science, Okayama University of Science, Okayama, Japan

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• Satoshi Awata,

  Roles Conceptualization, Formal analysis, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan

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• Hirokazu Tanaka,

  Roles Conceptualization, Data curation, Writing – original draft

  Affiliations Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan, Institute of Ecology and Evolution, Department of Behavioural Ecology, University of Bern, Hinterkappelen, Switzerland

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• Jun-ya Asai,

  Roles Data curation, Methodology

  Affiliation Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan

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• Alex L. Jordan

  Roles Conceptualization, Formal analysis, Methodology, Project administration, Writing – original draft, Writing – review & editing

  * E-mail: kohda.tanganyika@gmail.com (MK); lyndonjordan@gmail.com (ALJ)

  Affiliations Laboratory of Animal Sociology, Department of Biology and Geosciences, Osaka City University, Osaka, Japan, Department of Collective Behaviour, Max Planck Institute for Ornithology, Konstanz, Germany

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