Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Changing Seas
Cryptic Critters
Season 10
Episode 1002
Deep underwater, on a shipwreck near Key West, lives a tiny potential new threat. Being in the right place at the right time, one expert spotted it and immediately knew that it didn’t belong. Researchers want to know where this new species came from, and whether its sudden appearance spells disaster for the delicate coral reef ecosystem in the Florida Keys.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Unlock with PBS Passport
26:47
Scientists employ creative solutions to restore and reconnect Florida’s mangroves
Unlock with PBS Passport
26:47
The deep-sea submersible Alvin brings explorers to extraordinary places.
Unlock with PBS Passport
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.
Unlock with PBS Passport
26:53
Scientists study what makes certain corals more resilient than others.
Unlock with PBS Passport
26:42
Scientists monitor penguin populations and study the animals’ interaction.
Unlock with PBS Passport
26:42
Scientists study the devastating impacts of the Deepwater Horizon oil rig disaster.
Unlock with PBS Passport
26:42
Scientists set out to uncover the mysteries of blue holes.
Unlock with PBS Passport
26:42
Experts study the purpose of a male humpback whale's song.
Unlock with PBS Passport
26:42
Stony Coral Tissue Loss Disease is devastating Florida’s fragile coral reef.
Unlock with PBS Passport
26:47
Scientists work to understand what causes toxic algal blooms.
26:42
Discover the Cordell Bank, a magical underwater island few people have ever heard of.