The Labrador Retriever (also Labrador, Labby or Lab for short), is one of several kinds of retriever, a type of gun dog. The Labrador is considered[citation needed] the most popular breed of dog (by registered ownership) in the world, and is by a large margin the most popular breed by registration in the United States (since 1991), the United Kingdom, Poland,[citation needed] and several other countries.(Wikipedia)