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Ocean Ecosystems

Ocean ecosystems include the intertidal, reefs, oceanic zone and hydrothermal vents, among others.

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Deep Ocean Mysteries and Wonders

In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of the Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life.

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