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Changing Seas

Manatees: Conserving a Marine Mammal

Season 8 Episode 802

Every winter, hundreds of manatees aggregate at Crystal River, Florida. This sanctuary is also a treasure for scientists, who take advantage of these manatee gatherings to study them. From decades of visual ID studies to the most cutting-edge DNA research, experts hope that science will help conserve this beloved marine mammal.

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Galapagos: Window into the Future
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27:02
Season 6 Episode 603
Galapagos: Window into the Future
Scientists spend a month in the Galapagos Islands to conduct research.
Biggest Fish in the Sea
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26:54
Season 6 Episode 602
Biggest Fish in the Sea
The world’s largest known aggregation of whale sharks occurs just off the coast of Cancun.
Living Fossils
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26:48
Season 6 Episode 601
Living Fossils
Discover Crinoids which have been around since before the age of Dinosaurs.
Reefs of Rangiroa
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26:46
Season 5 Episode 504
Reefs of Rangiroa
The Changing Seas team meets with researchers in French Polynesia.
Creatures of the Deep
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26:46
Season 5 Episode 503
Creatures of the Deep
New research sheds light on the lives of mysterious creatures of the deep.
Sunken Stories
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26:45
Season 5 Episode 502
Sunken Stories
Divers from around the country learn how to map shipwrecks.
Coral Hybrids
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26:45
Season 5 Episode 501
Coral Hybrids
Follow one scientist studying coral in Belize.
Coastal Carnivores
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27:14
Season 4 Episode 404
Coastal Carnivores
Scientists studying the coastal Everglades make some perplexing discoveries.
Grouper Moon
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27:01
Season 4 Episode 403
Grouper Moon
The Cayman Islands are home to the last great reproductive population of grouper.
Mysterious Microbes
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29:33
Season 4 Episode 402
Mysterious Microbes
Scientists work to identify and link a devastating coral disease to a human pathogen.
Tracking Tigers
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27:16
Season 4 Episode 401
Tracking Tigers
Scientists use satellite tags and DNA forensic tools to track tiger sharks.
After the Spill
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26:47
Season 3 Episode 304
After the Spill
Oceanographers continue to study the long term effects of an oil spill.
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