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Wednesday, December 14, 2011

Noise Issues: Orcas and Shipping

Into the Waves with Orcas (4:30 ). Orcas use sound to navigate, find food and communicate. But underwater noise is making it more difficult. We explore, in this slideshow, how scientists use hydrophones to track noise from ships and boats to discover what affect noise pollution really has on orcas. Source: KQED public television.

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