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Nature

Ocean Giants, "Voices of the Sea" - Preview

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Humpback whales' songs carry thousands of miles, while a sperm whale scans the ocean depths with a sonar laser beam louder than a thunderclap. "Voices of the Sea" reveals a surprising underwater world where sound takes the place of sight. 4/11/2012

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Nature

Soul of the Elephant

An intimate look at one of the world’s most intelligent and sensitive animals.

52:59

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