The dogs trained to spot cancer- BBC News
Trials in the UK are currently assessing if dogs could be used to detect prostate cancer at an early stage. One study shows that specially trained dogs can pick up the presence of such cancer in urine samples in 93% of cases
https://www.youtube.com/watch?v=ijstvRYqKpc
I watched a good documentary on cancer detecting dogs. A trained dog just a mutt now. They had 10 people lay on the floor on their backs and they had the pup walk the line sinffing.
9 healthy people and one who knew he had a mild case of cancer. Guess who the dog stopped at??