Nature

Dogs That Changed the World: The Rise of the Dog

Season 25 Episode 11 | 52m 59s | Video has closed captioning.

From the tiniest Chihuahua to the largest St. Bernard, all dogs claim the wolf as their ancestor. Using DNA analysis and other research, scientists have now pieced together the puzzle of canine evolution, creating a fascinating picture of some of the essential dogs vital to the canine population. Part one chronicles the evolution of dogs and how they infiltrated human society.

Aired: 04/22/07

Rating: NR

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Problems Playing Video? | Closed Captioning

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