“All puppies are blank slates.” “If you do everything right with your puppy, you’ll have a great adult dog.” “If dogs have behavioral issues, we should blame the handle end of the leash.”

These are common misconceptions I hear as a trainer, and they make me so very sad. Behavior is a combination of nature and nurture, and if we could just take a moment to look logically at these myths, we would see just how silly they are.

Photo by Tavallai

Genetics influence behavior. This is part of the reason we have breeds: if you want a dog to work your sheep, you’re going to choose a Border Collie, not a Brittany Spaniel. Even though the two dogs have the same basic size and shape, one is more likely to have the instinctive motor patterns to do the work than the other. Getting a Border Collie whose parents…