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Sentinels of the Seas

Sentinels of the Seas

Season 2 Episode 202
26:51
Costa Rica's Surfing Paradise

Costa Rica's Surfing Paradise

Season 17 Episode 1
26:42
Whales in a Plastic Ocean

Whales in a Plastic Ocean

Season 17 Episode 2
26:42
Mystery of the Spinning Fish

Mystery of the Spinning Fish

Season 17 Episode 3
26:42
The Elephant Seals of Año Nuevo

The Elephant Seals of Año Nuevo

Season 17 Episode 4
26:42
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Tuberculosis: The Forgotten Plague

Tuberculosis: The Forgotten Plague

Season 6 Episode 5
26:49
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Changing Seas

Sentinels of the Seas - Trailer

Bottlenose dolphins are a beloved Florida icon, but recent studies show disturbing signs of immune system dysfunction and disease plaguing this charismatic mammal.