Dogs can sniff out cancer from a piece of cloth which had touched the breast of a woman with a tumor. With just six months of training, a pair of German Shepherds became 100-percent accurate in their new role as breast cancer spotters. The technique is simple, non-invasive and cheap, and may revolutionize cancer detection in countries where mammograms are hard to come by. In the first round, the dogs detected 28 out of the 31 cancerous bandages. On the second try, they scored 100 percent — sitting down in front of the box containing the cancerous sample with their muzzle pressed deep into the cone.
https://www.yahoo.com/news/dogs-detect-breast-cancer-bandage-researchers-190841015.html
