Dogs have been man's pet for over 14,000 years.
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Dogs can make about 100 different facial expressions.
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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 have four toes on their hind feet, and five on their front feet.
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A group of pugs is called a grumble.
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Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
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