Transcript for ‘Secrets of the Whales’ series released on Disney+
Finally tonight here, on this Earth day, spending more than three years to discover the secrets of the whales. Tonight, on this Earth day, the sounds and behavioral patterns of whales never seen before. In Alaska, the humpback whales, the scientists and photographers in the docuseries "Secrets of the whales," from disney-plus, our parent company, tracking them listening to the sounds they make. Listen to that. Listening in, they know when and where they'll surface. Oh, my god. Oh, my god. They also document the emotional bonds. A mother and her baby boy, resting her head on top of his. Scientists say this mother teaching her son how to speak. They say communicating with a language passed down through generations. In New Zealand, the orca whales. This mother hunting for stingrays to feed her family. Three generations, the grandmother to her grandchildren, all together. Exploring the crisis of trash in the ocean, too. Helping to save marine animals. The turtles. And freeing this tangled orca documents the whales for more than three years, in 24 locations around the world. Just a fascinating project. He's been called the most experienced candidate on affordable housing in the history of New York.
This transcript has been automatically generated and may not be 100% accurate.