How Does This Episode Change Your Thinking About Dogs?

Alexandra harwits is the host of Off Leash, a podcast about dogs and humans. This week she looks at what it's like to live with 70% of all dogs in the world who do not live inside human homes. In their noses, they have hundreds of millions more olfactory cells than we do in ours. A dog's nose could detect that teaspoon of sugar if it had been added to a million gallons of water - two olympic sized swimming pools full.