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A dog's nose is its fingerprint. No two dogs have the same nose. Each has a unique pattern, making a dog's nose the equivalent of a human fingerprint.
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The German Shepherd is one of the three smartest dog breeds. The ranking was compiled by psychology professor Stanley Coren of the University of British Columbia in Vancouver. He assessed the ability to understand a new command (less than five repetitions) and to execute a command the first time.
German shepherd