Back to Show
Changing Seas
Coral Hybrids - Trailer
Once a common sight in the Caribbean and Florida, Elkhorn and Staghorn corals are now listed as threatened on the U.S. Endangered Species list. But while these corals have declined in recent years, their hybrid appears to be increasing in parts of the region.
Support Provided By

Unlock with PBS Passport
26:46
The Changing Seas team meets with researchers in French Polynesia.

Unlock with PBS Passport
26:46
New research sheds light on the lives of mysterious creatures of the deep.

Unlock with PBS Passport
26:45
Divers from around the country learn how to map shipwrecks.

26:45
Follow one scientist studying coral in Belize.

Unlock with PBS Passport
27:14
Scientists studying the coastal Everglades make some perplexing discoveries.

Unlock with PBS Passport
27:01
The Cayman Islands are home to the last great reproductive population of grouper.

Unlock with PBS Passport
29:33
Scientists work to identify and link a devastating coral disease to a human pathogen.

Unlock with PBS Passport
27:16
Scientists use satellite tags and DNA forensic tools to track tiger sharks.

Unlock with PBS Passport
26:47
Oceanographers continue to study the long term effects of an oil spill.

Unlock with PBS Passport
26:46
A group of scientists tests sea sponges for potential anti-cancer properties.

Unlock with PBS Passport
26:46
Explore the emerging science of coral reef restoration.

26:49
The invasive lionfish is a major threat to biodiversity and a stressed coral reef.