Dogs have long been dependable companions by our sides. But it wasn't always that way-and a look at their closest living relative, the wolf, makes it clear why. Researchers reveal how humans tamed fearsome canines over tens of thousands of years, and how modern dog intelligence and behaviors have made them indispensable companions.
Episode Duration: 56 minutes and 46 seconds
Episode Number: 4702
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PBS' premier science series helps viewers of all ages explore the science behind the headlines.
Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.
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