Stanley Coren, a leading canine researcher, used data from 200 dog obedience judges to rank the smartest dog breeds. He found dogs are as smart as 2-year-old kids, can comprehend more than 150 words and can count to four or five.
Top Smartest
No. 1: Border collies
No. 2: Poodles
No. 3: German shepherds
No. 4: Golden retrievers
No. 5: Dobermans
No. 6: Shetland sheepdogs
No. 7: Labrador retrievers
Top 5 Dumbest
Borzoi
Chow Chow
Bull dog
Basenji
Afghan Hound
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