Season 1 · Episode 20
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A sound of dolphins
Fri, Feb 25, 1972
The crew isolates a pair of dolphins to study the species' remarkable sonar system.
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Fri, Feb 25, 1972
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The Undersea World of Jacques Cousteau
36 episodes
Episode
S1 · E20
in The Undersea World of Jacques Cousteau
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A smile of the walrus
S1 · E21
A smile of the walrus
Sun, Nov 5, 1972