The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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The Basenji dog is the only dog that is not able to bark.
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Dogs have four toes on their hind feet, and five on their front feet.
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In the movie 'The Wizard Of Oz', Toto the dog's salary was $125 a week, while Judy Garland’s was $500 a week.
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Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
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Dogs have been man's pet for over 14,000 years.
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Cats and dogs can hear ultrasound.
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