You'd think dog owners would ace this test: can you correctly identify all six dog barks ? According to the study, even people who don't have dogs could interpret dogspeak for stranger alert and on the attack. But many dog owners (myself included) had a tougher time differentiating between barks for "let's go for a walk" and "give me that ball." How did you fare? Does your dog's communication correlate with the barks demonstrated here?