According to The Intelligence of Dogs, which ranks 131 dog breeds in terms of their relative intelligence, the border collie is the smartest dog breed known to man. Need proof? Chaser, a ...

Stacker counts down the most intelligent pups based on research published by Stanley Coren in his 2006 "The Intelligence of Dogs." ...

For context, the average dog learns about 160 words throughout their lifetime, while most smart breeds can learn around 250. Border collies are energetic – and happiest when they have a job to do.

These small but mighty pups have roots on family farms in Denmark and Sweden, where they helped catch rodents, herd livestock ...