Arizona PBS Previews

NOVA : 4702

Preview | 30s

"Dog Tales" - 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.

Aired: 02/12/20

Rating: NR

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