When did Horizon Season 7 Episode 18 air?
Horizon Season 7 Episode 18 aired on July 13, 1970.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This a a report by Horizon on the research in the USA and Canada into the habits of the wolf in its natural surroundings and in captivity.
Direct answers for episode-level questions and details.
Horizon Season 7 Episode 18 aired on July 13, 1970.
This episode runs for approximately 60 minutes.
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