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
Dog type very old types of various kinds, and would fit into multiple categories. The following are dog types and subtypes. A single type of dog may have been developed for multiple sorts of work, so there is some overlap. Broad categories are listed first, then sub-types. For a list of individual dog breeds, see List of Dog Breeds. "also see" Pastoral Dogs and Guard Dogs Note 1. Every modern dog breed has a written "Standard", that describes in detail aspects of appearance. Standards are the basis of the sport of dog showing, as each dog is compared against the ideal of