This exhilarating and inspiring book is about how dogs can be more than just cute pets. Out of love for their owners, they are able to learn absolutely incredible things. For example, save human lives. Claire Guest is convinced that dogs can give people a lot. Claire's own life was saved by one of her pets. Daisy's fiery red Labrador warned her of a hard-to-diagnose form of cancer, identifying the disease by smell when it was still in its early stages.