Listen to the calls of a killer whale

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Kelley Newman from the University of Alaska is working with Greenpeace to gather evidence on the threats to wildlife Shell’s plans to drill for oil in the Arctic Sea poses. Listen to the calls of a killer whale as recorded in the Bering Sea.
http://greenpeaceblogs.com/2012/08/01/a-freeway-through-a-playground/
about 2 years ago