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Summary: A global view of the specialized strategies and extreme behavior that living things have developed in order to survive; what Charles Darwin termed "the struggle for existence."
Release Date: October 12, 2009
Runtime: 0 h 50 min
MPAA: TV-G

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Summary: Strand of documentaries on wildlife and the environment.
Release Date: October 30, 1983
Runtime: 1 h 00 min

Production: BBC Studios
Language: English

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