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 man is more likely to get a woman's phone number if he is accompanied by a dog.
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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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Dogs can make about 100 different facial expressions.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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