Credit: Teppei J. Yasunari, Daiju Narita, Toshihiko Takemura, Shigeto Wakabayashi, Akira Takeshima
(From left) Teppei J. Yasunari, Daiju Narita, Toshihiko Takemura, Shigeto Wakabayashi, and Akira Takeshima of the research team. (Photos: Teppei J. Yasunari, Daiju Narita, Toshihiko Takemura, Shigeto Wakabayashi, Akira Takeshima)