Scientists are proving that dogs can use their sense of smell to sniff out cancer.
Researchers say they've displayed urine samples to this dog, knowing that out of all the specimens, only one patient has cancer. And Tangle, the spaniel, can sniff out the one with cancer most of the time. So what's the practical use of that?
"I don't think any of us envision a dog actually being in the GP's office helping the GP with the diagnosis. But we are hoping is that the dog will be a useful way that we can identify the chemicals that are specific for bladder cancer and hopefully for other cancers as well," says Carolyn Willis, a research scientist.