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Changing Seas

California Sea Otters: Life on the Edge | Changing Seas | Preview

Adored by many for its cuddly appearance, the threatened southern sea otter is a voracious predator that needs to eat the equivalent of 25% of its body weight a day to survive. Once nearly hunted to extinction, this endearing marine weasel has made a slow comeback on California’s central coast, demonstrating its role as an ecosystem engineer in the process.

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The Secret Sex Life of Fish
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26:43
Discover how some fish species change their sex.
Billfish: Battle on the Line
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26:44
Researchers provide data necessary to protect fish populations from further decline.
Grand Canyman's Famous Stingrays
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26:42
Researchers study what impact ecotourism might have on southern stingrays.
Sea Turtles: The Lost Years
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26:43
Researchers are beginning to understand where turtles go during their “lost years.”
Saving Sawfish
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26:54
Scientists conduct research to save the Smalltooth Sawfish.
Galapagos: Window into the Future
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27:02
Scientists spend a month in the Galapagos Islands to conduct research.
Biggest Fish in the Sea
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26:54
The world’s largest known aggregation of whale sharks occurs just off the coast of Cancun.
Living Fossils
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26:48
Discover Crinoids which have been around since before the age of Dinosaurs.
Reefs of Rangiroa
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26:46
The Changing Seas team meets with researchers in French Polynesia.
Creatures of the Deep
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26:46
New research sheds light on the lives of mysterious creatures of the deep.
Sunken Stories
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26:45
Divers from around the country learn how to map shipwrecks.
Coral Hybrids
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26:45
Follow one scientist studying coral in Belize.
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