15 Dog Breeds That Have A Longest Lifespan And Live A Long Li 16 longest living dog breeds. The smallest dog breed on record in the world, the chihuahua, is also one of the longest living dog breeds. on average, chihuahuas have a lifespan of 14 to 18 years. however, many live well beyond that into their late teens and early 20s. a chihuahua named tobykeith currently holds the world’s oldest living dog record.
10 Dogs With The Longest Lifespans A Z Animals 22 longest living dog breeds for furry love that lasts. Healthy shih tzu dogs can live to be any age between 10 and 18, but have an average life span of 13 years. shih tzus are known for being affectionate and playful. a pair of shih tzu dogs at the. Life span — 10 15 years. 5. chihuahua. the smart, lovable chihuahua is one of the longest living breeds, as well as one of the oldest, likely having originated in ancient mexico. the longest living chihuahua on record, spike, turned 23 in 2022. the average life expectancy of a chihuahua is usually around 14 to 16 years. 17 of the longest living dog breeds.
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