About AMANO Masao
About Nagasaki Univ., Nagasaki, JPN
About YAMADA Tadasu K.
About National Museum of Nature and Sci., Ibaraki, JPN
About KURAMOCHI Toshiaki
About National Museum of Nature and Sci., Ibaraki, JPN
About HAYANO Azusa
About Kyoto Univ. Museum, Kyoto, JPN
About ARAI Kazumi
About Iwasaki Animal Hospital, Tokyo, JPN
About SAKAI Takashi
About Aquaworld Oarai, Ibaraki, JPN
About Marine Mammal Science
About 日本
About 集団
About 座礁
About 生活史
About 群れ