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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A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
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Dogs have four toes on their hind feet, and five on their front feet.
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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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Two dogs were among the Titanic survivors.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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The Basenji dog is the only dog that is not able to bark.
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