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Is a Dog's Mouth Cleaner Than a Human's?

We've all heard it, "a dog's mouth is cleaner than a human's mouth." So, is it true? "Science Guy" Jason Lindsey puts it to the test. He swabbed the family dog's mouth and a human's mouth. The germs were then placed in an incubator to encourage growth. Which will have more germs? Go to http://on.fb.me/xuxn28 to become a fan of Hooked on Science on Facebook. Go to http://bit.ly/Aytlh0 to become a fan of Hooked on Science on Twitter.
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