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Acousonde Gallery
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2013-07-27 Sperm whale 0045
Acousonde 3B attached with suction cups to a sperm whale in Nemuro Strait, Hokkaido, Japan. This attachment lasted over 15 hours. July 2013. Photo by H. Kobayashi, courtesy of Dr. M. Amano, Faculty of Fisheries, Nagasaki University.