Collie is the 6th most intelligent type of dog in the world. (4/14)

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  1. Scotch Collie (original collie) is #1! When bred for AKC standards the rough collie’s intelligence was diminished & border collies aren’t as calm. The original Lassie, or Scotch collie, is a land race breed, and is the smartest and most biddable dog.

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