Why do dogs smell butts?
A butt sniff for dogs is like a handshake for humans. Dogs' amazing sense of smell is 10,000 to 100,000 times better than humans. They also have a special part of their noses called the Jacobson's organ that lets them ignore the smell of poop when they sniff another dog's rear.
When a dog smells another's butt, it gets information about the other dog. It's almost like someone introducing themselves to another person.
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