Overall Longest Living Dog Breed: Chihuahua
Vying for this top spot along side the Australian cattle dog is that the official national dog of Mexico. Chis, as their loving owners often call them, are bright, curious, and filled with spark and pluck. They’re extremely loyal, too.
If you’re also wondering about the shortest- and longest-living dog breeds, confine mind that size can make a difference. The gentle Bernese mountain dog, usually between 60–110 pounds, lives a mean of seven years, while the feisty Chihuahua, who weighs about 3–6 pounds, could be your pal for up to 18 years.
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