Service dogs are recognized in the U.S. as "necessary medical equipment."
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Dogs know from which nostril a smell has entered.
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Americans love dogs! 44% of U.S. households have a dog, which equates to 55.3 million homes
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A dog's tail is an extension of their spine, and contains bones and muscles.
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The Beagle and Collie are the nosiest dogs, while the Akbash Dog and the Basenji are the quietest.
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A dog's whiskers are used as sensing devices.
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Those born under the sign of the dog in Chinese astrology are considered to be loyal and discreet, though slightly temperamental.
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Just like human fingerprints, no two dogs' nose prints are alike.
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Touch is the first sense the dog develops. The entire body, including the paws, is covered with touch-sensitive nerve endings.
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Dogs sleep for an average of 10 hours per day.
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Bloodhounds are prized for their ability to single out and identify a number of scents simultaneously.
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A person standing still 300 yards away is almost invisible to a dog. But a dog can easily identify its owner standing a mile away if the owner is waving his arms.
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Small quantities of grapes and raisins can cause renal failure in dogs. Chocolate, macadamia nuts, cooked onions, or anything with caffeine can also be harmful.
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Ancient Egyptians revered their dogs. When a pet dog would die, the owners shaved off their eyebrows, smeared mud in their hair, and mourned aloud for days.
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More than half of all U.S. presidents have owned dogs.
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