Does your dog tilt her head? If you have a canine who does this adorable behavior, you’ve probably wondered what it means. There’s actually a lot going on there, and it involves the science of how dogs hear, their understanding of human language and even reinforcement from you!

You may also have heard that dogs who tilt their heads are smarter than those who don’t. Dr. Sarah Wooten weighs in on this claim, and much more, in the video below.

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