When did Horizon Season 13 Episode 9 air?
Horizon Season 13 Episode 9 aired on March 1, 1976.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This documentary by Horizon takes a look at the shark, the supreme predator of the sea.
Direct answers for episode-level questions and details.
Horizon Season 13 Episode 9 aired on March 1, 1976.
This episode runs for approximately 60 minutes.
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