Dog have died and half are still alive, ranges from 10 to 13 years. Individual dogs may live well beyond the median of their breed. The breed with the shortest lifespan (among breeds for which there is a questionnaire survey with a reasonable sample size) is the Dogue de Bordeaux, with a median longevity of about 5.2 years, but several breeds, including Miniature Bull Terriers, Bloodhounds, and Irish Wolfhounds are nearly as short-lived, with median longevities of 6 to 7 years. The longest-lived breeds, including Toy Poodles, Japanese Spitz, Border Terriers, and Tibetan Spaniels, have median longevities of 14 to 15
Toy dog rare breeds may be awaiting approval by a given kennel club. Some new breeds may currently be recognized only by their breed clubs. Some rare new breeds have been given breed names, but may only be available from the breeder or breeders who are developing the breed, and may not yet be recognized by any kennel club. In addition to the major registries, there are a plethora of sporting clubs, breed clubs, and internet-based breed registries and businesses in which dogs may be registered in whatever way the owner or seller wishes. No major or reputable dog registry recognizes the