Ask any dog owner and they will tell you with certainty that their four legged friend can understand them. Now a study from the UK confirms it. Researchers had dogs listen to human speech through a set of speakers—one on the right side of the animal, one on the left. Then they gave a simple command. They watched to see if the dog inclined its head to the right or to the left, depending on the tone of the command. We asked Sound Medicine’s veterinary expert Dr. Liz Murphy to explain the findings.