Back to Show
Changing Seas
Alien Invaders - Trailer
In the waters of the western Atlantic and Caribbean, a voracious alien predator has taken hold. Native to the Indo-Pacific, the invasive lionfish is a major threat to biodiversity and the health of already stressed coral reef ecosystems.
Support Provided By
Unlock with PBS Passport
26:43
Discover what lives beneath the Blue Heron Bridge in Florida.
Unlock with PBS Passport
26:43
Visit the remote Pacific, the islands of Maug - a natural laboratory for scientists.
Unlock with PBS Passport
26:43
Scientists take advantage of manatee gatherings to study them.
Unlock with PBS Passport
26:43
Some scientists are suggesting that ctenophores are the oldest sea animals.
Unlock with PBS Passport
26:43
Discover how some fish species change their sex.
Unlock with PBS Passport
26:44
Researchers provide data necessary to protect fish populations from further decline.
Unlock with PBS Passport
26:42
Researchers study what impact ecotourism might have on southern stingrays.
Unlock with PBS Passport
26:43
Researchers are beginning to understand where turtles go during their “lost years.”
Unlock with PBS Passport
26:54
Scientists conduct research to save the Smalltooth Sawfish.
Unlock with PBS Passport
27:02
Scientists spend a month in the Galapagos Islands to conduct research.
Unlock with PBS Passport
26:54
The world’s largest known aggregation of whale sharks occurs just off the coast of Cancun.
Unlock with PBS Passport
26:48
Discover Crinoids which have been around since before the age of Dinosaurs.