Topping the popularity list, by ranking in the first place, this breed favorite among many, Labrador Retriever are medium sized dog originating from Canada and the United States. They belong to Sporting dogs and Gun Dog breeds. It grows as tall as 24 inches and weighs in between 70 to 75 pounds. They are most sought of breed for helping the blind and as used as therapy dogs. They have a double coat, which helps them get protected from the cold and wet weather. Their coat is usually short, thick and smooth. They are protective, amiable and attached to children. They enjoy indulging in retrieving and sporting activities, who get along well with children and other pets.