Do Dogs Know How We Feel? Vocal Brain Mechanism May Allow Canines To 'Navigate' Human Social Environments

Any dog owner will tell you that no one knows him better than Fido. It often seems that man's best friend can tell when his owner is blue or when there's cause for revel. Dog lovers and scientists alike have long understood that dogs possess a remarkable ability to empathize, but researchers are still trying to understand exactly where this trait originated.