If you are a dog owner, you will somehow feel that your beloved best friend do understands your language or emotions. Well, science has finally proven that you are absolutely right. By putting dogs in an MRI, scientists discovered that dogs understand both the intonation and content of words. Dogs, like people, use the left hemisphere to process words, a right hemisphere brain region to process intonation, and praise activates dog’s reward center only when both words and intonation match, according to this study. This is really amazing. Watch this clip.