Blue-Collar Dogs on Nat Geo WILD
4 The Love Of Animals
FEBRUARY 20, 2011
With olfactory senses generally 100,000 times more powerful than a human’s, dogs are now being trained to detect epilepsy, diabetes and even cancer with a single sniff. In the video: “Guide Dog Puppies” – Meet some of the cutest guide dogs you’ll ever meet! Blue-Collar Dogs: Border Hounds.
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