Smells like melanoma

From News of the Weird:

Researchers at England’s Cambridge University, and others in Tallahassee, Fla., and Cleveland, are training dogs to screen patients for prostate and lung cancers by detecting distinct smells of tumors in patients’ breath. One researcher reported a success rate of 87 percent, which rivals that of some expensive technology. (The genesis of the research was a 1989 journal article reporting that a border collie attacked a woman’s mole that turned out to be a malignant melanoma and ignored her after the mole was removed.)