Season 1 · Episode 20 of 36
Aired Feb 25, 1972
A sound of dolphins
Fri, Feb 25, 1972
0 of 36 watched this season
The crew isolates a pair of dolphins to study the species' remarkable sonar system.
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Airs
Fri, Feb 25, 1972
Show
The Undersea World of Jacques Cousteau
36 episodes
Episode
S1 · E20
in The Undersea World of Jacques Cousteau