Did you know cancer-sniffing dogs are more than 90-percent accurate in diagnosing the disease.  Researchers at the University of Pennsylvania just completed the largest study ever done on cancer sniffing dogs.

It found the animals are 98-percent accurate in detecting prostate cancer by smelling urine samples.  Dogs had a more than 90-percent success rate in identifying the scent of ovarian cancer.

The study was presented at the American Urological Association in Boston over the weekend.

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