The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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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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Dogs sometimes fake being sick to get attention.
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Two dogs were among the Titanic survivors.
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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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