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Nature
Season 25, Episode 12
Episode Title: Dogs That Changed The World: Dogs by Design
Air Date: 2007-04-29
Overview:
This episode details the explosion of the basic working dog types into the roughly 400 breeds known today; explores concerns about todayβs competitive breeding and its effect on dogsβ health and well-being; and outlines dogsβ potential role in medical care for human beings.
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