Nature

Dogs That Changed the World (Part 1) - Preview

Preview: Season 25 Episode 11 | 30s

Dogs' roles as guard, hunter, herder, hauler and spiritual protector, as well as current theories about the wolf's evolutionary leap. 10/5/2011

Aired: 10/05/11

Rating: NR

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Major support for NATURE is provided by the Arnhold Foundation, The Fairweather Foundation, Kate W. Cassidy Foundation, Sue and Edgar Wachenheim III, Kathy Chiao and Ken Hao, Charles Rosenblum, Sarah …

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