Back to Show
Changing Seas
Dolphins: Breaking the Code - Trailer
Dr. Denise Herzing has dedicated her career to studying the wild Atlantic spotted dolphins that live in the shallow waters of the Bahamas. Through non-invasive observation, she researches the animals’ social structure, behaviors and communication. Now modern technology is making it possible to correlate the dolphins’ sounds and behavior, bringing experts closer to decoding dolphin communication.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By

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.
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.

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.