Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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Cats and dogs can hear ultrasound.
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A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
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The Basenji dog is the only dog that is not able to bark.
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