Takahata, Yu https://orcid.org/0000-0003-3918-9907
Ohtsuki, Hisashi
Uchida, Kenta
Shimamoto, Tatsuki
Kutsukake, Nobuyuki
Funding for this research was provided by:
Japan Society for the Promotion of Science (22KJ1422)
Inui Memorial Trust for Research on Animal Science, Japan
the SOKENDAI Advanced Sciences Synergy Program
Article History
Received: 1 June 2026
Accepted: 15 September 2026
First Online: 24 September 2026
Declarations
Ethical approval: The capture and handling of squirrels was approved by the Institutional Animal Care and Use Committee of the National University Corporation Hokkaido University (license number: 15–0121) and the Institutional Animal Care and Use Committee of the Graduate University for Advanced Studies, SOKENDAI (license number: SKD2020AR002).
Competing interests: The authors declare no competing interests.