Working Dogs

Scent dogs trained from puppyhood can detect termites with their sensitive noses, as the insects give off telltale methane gas produced by microorganisms in their digestive tracts. This beagle is seeking pests in a house's insulated crawl space. Exterminators often credit their termite-hunting beagles and Labrador retrievers with locating infestations in areas of a house or building where there are no apparent signs of termites, a testament to the dogs' unique skill.