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.
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A puppy is born blind, deaf, and toothless.
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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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The Basenji dog is the only dog that is not able to bark.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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