Social object play between captive bottlenose and Risso's dolphins

• Hisako Ikeda,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Visualization, Writing – original draft

  Affiliation Kujukushima Aquarium–Umi Kirara, Sasebo, Nagasaki, Japan

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• Masayuki Komaba,

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

  Affiliation Kujukushima Aquarium–Umi Kirara, Sasebo, Nagasaki, Japan

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• Kumiko Komaba,

  Roles Conceptualization, Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Kujukushima Aquarium–Umi Kirara, Sasebo, Nagasaki, Japan

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• Ayaka Matsuya,

  Roles Conceptualization, Data curation, Formal analysis, Investigation

  Affiliation Kujukushima Aquarium–Umi Kirara, Sasebo, Nagasaki, Japan

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• Akihiro Kawakubo,

  Roles Project administration, Supervision

  Affiliation Kujukushima Aquarium–Umi Kirara, Sasebo, Nagasaki, Japan

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• Fumio Nakahara

  Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Visualization, Writing – review & editing

  * E-mail: fnakahar@tokiwa.ac.jp

  Affiliation Tokiwa University, Mito, Ibaraki, Japan

  http://orcid.org/0000-0002-0224-9446

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