It's under your nose so you can see how big it is in a mirror-not sure what you mean.
it depends if you eat a whole lot of food, but some people are big because they are born fat.
I Would say a humans mouth because a dog's mouth contains so much dirt example in movies, also real life, you see dogs going around eating, sniffing and chewing everything they come across. A Humans...
No
A dog's mouth is cleaner than a human's mouth.
Doug
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