Chihuahuas are the smallest dog breed in the world. They are also one of the longest-living dog breeds, with a lifespan of up to 16 years, although some have been known to live 20 years or more.

If you're looking for the goldilocks of dogs – not too small but not too big – a medium-sized breed could be the answer you're looking for. But with any dog breed, it's important to know ...

Your dog's life expectancy may not be easy to think about, but it can be a necessary family conversation to have. Here's how long dogs typically live.