Canine breeds refer to the various types of dogs that have been developed through selective breeding for specific traits, behaviors, and appearances. Each breed has unique characteristics, such as size, coat type, and temperament, which make them suitable for different roles, including companionship, work, and sport. Popular breeds include Labrador Retrievers, German Shepherds, and Bulldogs. There are hundreds of recognized canine breeds worldwide, categorized by groups such as sporting, hound, working, terrier, toy, non-sporting, herding, and miscellaneous. Organizations like the American Kennel Club (AKC) and the Fédération Cynologique Internationale (FCI) maintain breed standards and promote responsible breeding practices.