Life span is the breed figure most owners actually want, and the hardest to source honestly. For cats the catalogue has it; for dogs it mostly does not, so this is a page about the end where the data is real.
The longest-lived breed on record here is the Kurilian Bobtail, reaching about 20 years. Most catalogued cat breeds land in a twelve-to-sixteen-year band, so twenty is the outlier rather than the norm.
Why dogs are missing from this list
Dog-breed infoboxes rarely state a life span, so the catalogue leaves the dog figures blank instead of filling them with a guess. Cat spans come from a source that records them, which is why the breeds page can rank cats on longevity and not dogs.
A number about the breed, not your cat
A life-span range is a fact about a population, not a promise about one animal. It says what the records show for the breed; care, luck and genetics decide the rest, and no dataset can read those off a name.
The cat figures are measured from a public source and cited on each breed's page. A breed with no recorded span shows no number rather than an invented one.
Which cat breed lives longest?
In this catalogue, the Kurilian Bobtail, reaching about 20 years — the highest recorded here. Most cat breeds sit in a twelve-to-sixteen-year range.
Why are there no dog life spans?
Dog-breed infoboxes rarely record one, so the catalogue leaves the field blank rather than guessing. The cat figures come from a source that does record them.
Does a long-lived breed mean a long-lived cat?
No. The range describes the breed in the records; an individual animal's life depends on care and luck, which no dataset can predict.