Health of your favourite pet dog is now easy to examine. Wetness in nose of your pet says the your dog is healthy. Research were done on dogs nostrils and breathing technique in Pennsylvania University. Dogs have 220 million smell-sensitive cells. This inborn power can detect cocaine and cancer. Urine samples of patients were tested by dogs by smelling.After observing the changes in behaviour of dogs some 64 samples were predicted to be positive.Further medical tests performed on these 64 urine samples found confirmed cancer.
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