Dogs have been man's pet for over 14,000 years.
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Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
11
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.
16
A puppy is born blind, deaf, and toothless.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Dogs can make about 100 different facial expressions.
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