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Changing Seas
Sentinels of the Seas
Season 2
Episode 202
This episode takes a closer look at the health of Florida’s most beloved marine mammal – the bottlenose dolphin. The animal’s charismatic smile belies the silent threats lurking in its ocean home. Many Florida dolphins are showing disturbing signs of immune system dysfunction and disease, which may be linked to contaminant exposure.
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26:42
Florida’s gentle giants are dying in record numbers.

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26:42
Experts are working to conserve and restore the Puget Sound’s declining kelp forests.

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26:42
Scientists study the body size and health of humpback whales across their migratory cycle.

26:42
Experts study declines in the number of humpbacks migrating between Alaska and Hawaiʻi.

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26:47
Scientists employ creative solutions to restore and reconnect Florida’s mangroves

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26:47
The deep-sea submersible Alvin brings explorers to extraordinary places.

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26:42
Scientists study salt marshes along scenic coastlines in the South.

26:42
Scientists team up with anglers to study the survival rates of the fish.

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26:53
Scientists study what makes certain corals more resilient than others.

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26:42
Scientists monitor penguin populations and study the animals’ interaction.

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26:42
Scientists study the devastating impacts of the Deepwater Horizon oil rig disaster.

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26:42
Scientists set out to uncover the mysteries of blue holes.