Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Watch Preview
Changing Seas
Biggest Fish in the Sea
Season 6
Episode 602
Each summer, the world’s largest known aggregation of whale sharks occurs just off the coast of Cancun, Mexico, attracting tourists and scientists alike. Hundreds of these gentle giants come to the area to feed on plankton, giving experts the opportunity to learn more about the largest fish in the sea.
Support Provided By
Unlock with PBS Passport
26:48
Examine the important role seagrasses and mangroves play in the ocean’s web of life.
Unlock with PBS Passport
26:51
The Changing Seas crew shadows a team of research divers in Dry Tortugas National Park.
26:45
Scientists develop sustainable aquaculture methods to take the pressure off wild fish.
26:46
Scientists scan the ocean floor to find deep sea corals threatened by bottom trawling.
26:49
Scientists at the world’s only underwater lab study the impacts of ocean acidification.
26:54
After being fished to near extinction, Goliath Groupers are making a comeback in Florida.