"Many animals look at parts of the body, the voice, the hands, as separate entities and don't wholly integrate them," said study co-author Frans de Waal of the Yerkes National Primate Research Center at Atlanta's Emory University.
"This study shows that they have whole body integration [because], at least if they know the individuals, they can match the faces and the behinds."
I'm a bit curious about that point. So your kitty cat knows your face, and knows your voice, but doesn't really think of them as belonging to a single entity? How would we know that?