The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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Dogs can make about 100 different facial expressions.
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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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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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