The Labrador Retriever (also Labrador, or Lab for short) is one of several kinds of retriever, a type of gun dog. The Labrador, once known as the Lesser Newfoundland, is the most popular breed of dog in the world. It is also the most popular breed of assistance dog in the United States, Australia, and many other countries, as well as being widely used by police and other official bodies for their detection and working abilities. (Source: Wikipedia)