Popular Breeds : The Labrador Retriever is a muscular dog. Its very affectionate, lovable, and good-natured pet. It loves to play, has an excellent temperament and is very friendly with children. It craves human attention and needs to feel as though it's part of the family. A Lab can stay in aprartments, it is a big eater and needs regular exercise and moderate rations to avoid a tendency to become overweight. Life span is around 10-12 years.