After examining 120 breeds in the early 1990s and 2006, Dr. Coren rates them in the top 20 for intellect.
1. Border Collies This fast-moving herder outperforms others.
Any Border Collie owner will tell you this enthusiastic and athletic breed overachieves.
2. Poodle Pay attention to these whip-smart, curly-coated cuties
even though this breed's Toy, Miniature, and Standard variations look posh.
3. German Shepherd The German Shepherd is a trusted service dog globally.
This brave, confident, and smart herding breed knows friend from adversary.