Long-term associations among male sperm whales (Physeter macrocephalus)

• Hayao Kobayashi ,

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

  * E-mail: physeter0809@gmail.com

  Affiliation Graduate School of Fisheries and Environmental Science, Nagasaki University, Nagasaki, Japan

  https://orcid.org/0000-0002-2201-7669

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• Hal Whitehead,

  Roles Supervision, Validation, Writing – review & editing

  Affiliation Department of Biology, Dalhousie University, Halifax, NS, Canada

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• Masao Amano

  Roles Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Graduate School of Fisheries and Environmental Science, Nagasaki University, Nagasaki, Japan

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