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Acousonde Gallery
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2012-08 P1010744 3B on Narwhal in E Greenland
An Acousonde 3B (with user-added satellite locator and extra flotation) attached by hand to a temporarily captive male tusk-bearing narwhal in East Greenland using the 3B's standard suction-cup configuration. August 2012. Photo by Mads Peter Heide-Jørgensen, Greenland Institute of Natural Resources.