Toy Poodle, 20 years
Toy Poodles are one of the most intelligent dog breeds around making them very easy to train. That, combined with their super high energy levels makes them the ideal dog breed for agility competitions.
They have relatively few health concerns being that they aren’t incredibly small nor incredibly large, and, since they’re hypoallergenic, make great pets for humans with health issues.
It’s a good thing Toy Poodles make such great companions as they’re likely to be around with you for up to 20 years.