Changing Seas

Sentinels of the Seas

Season 2 Episode 2 | 26m 51s

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

Aired: 06/07/10

Rating: TV-G

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Major funding for this program was provided by the Batchelor Foundation, encouraging people to preserve and protect America's underwater resources.