(SHOPWORN.) Essential reference for JRT care and training. Hero of the popular Wishbone TV series and comic relief on Frasier, Jack Russell Terriers are the popular dog. Find out about Jack Russell history, how to hunt with your dog, and where to find a breeder or other adoption options. Get expert advice on puppy behavior and training, correcting behavior problems, socializing, nutrition and exercise, plus fun activities. Also included is information on health issues such as common illnesses and chronic problems found in the breed.