You have a picture in your head. A picture of yourself with your practically perfect dog. You ve always preferred big dogs, and your ideal dog is sturdy, strong, and energetic. At the same time, you envision a dog who is gentle and completely in tune to your needs, your whims, and your every move. That perfect dog is likely a Labrador Retriever. After all, the Labrador Retriever is the most popular dog in the United States, according to American Kennel...