city apartments. Many dogs have given their own lives to save or protect their masters. Dogs guard the home and herd cattle and sheep. Their keen sense of smell makes them fine hunting companions. Dogs were the first animals to be tamed by man. Most dogs can be trained to guard their masters' homes and property. Bloodhounds track down criminals. Specially-trained Seeing Eye dogs lead blind persons. Thus man has bred a large variety of dogs each with distinct characters and abilities. In the 6 ...