2 Season
91 Episode
The Undersea World of Jacques Cousteau - Season 1 Episode 20 A sound of dolphins
The crew isolates a pair of dolphins to study the species' remarkable sonar system.
- Year: 1997
- Country: France, United States of America
- Genre: Documentary
- Studio: Das Erste
- Keyword: marine biology, nature documentary
- Director:
- Cast: Jacques-Yves Cousteau