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(Airs Sunday, July 19) Marine biologist Rick Rosenthal set out to capture on film the biggest, fastest, most dangerous gamefish in the sea -- the ancient creatures known as billfish.
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Giant-wave surfers from around the world couldn't walk away from the largest waves ever recorded.
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All waves share certain characteristics. See inside giant waves and find out how they work with this interactive feature.
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Krill, which are small, shrimp-like creatures, represent the very cornerstone of the Antarctic ecosystem.
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Do you have special memories of time you've spent at the ocean -- or in it? Have you had a close encounter with marine life? NATURE wants to know about it.
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The world's nearly 300 turtle species have a remarkable range of behaviors, from wood turtles that stomp the ground to attract worms, to sea turtles that travel thousands of miles to lay eggs.
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TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.
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TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.
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TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.
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TOOTHWALKERS presents extremely rare under-the-ice footage that reveals a complex and potentially dangerous side to this huge and often mysterious mammal.
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Produced by THIRTEEN ©2009 Educational Broadcasting Corporation. All rights reserved.
Major corporate support for Nature is provided by SC Johnson, Canon, CPB.
