Multiple choice How can a cat hear in all directions without moving its head? It can move its ear by an angle of 360o. It has four ears. It has 30 muscles in the ear. It can move its head by an angle of 360o. None of these Reveal answer Fill a bubble to check yourself C Correct answer Explanation Cats have amazing hearing ability. A cat's ear has 30 muscles that control the outer ear (by comparison, human ears only have six muscles). These muscles rotate 180o, so the cat can hear in all directions without moving its head.