The 40 Smartest Dog Breeds – Ranked by a Psychologist

Published on March 4, 2019 By Chloe Draws

Shetland Sheepdog

These dogs love a good mental challenge and excel with new activities. Bred as a herding dog, Shetlands never get tired of learning and training!

Dog Breeds List

This breed is even nicknamed “shadows” as a testament to their loyalty and attachment to their owners.