Cats have about 12 whiskers, or vibrissae, on each side of their face. They are thicker than normal hairs and contain a blood and nerve supply. They are very important! Cat use their whiskers to tell their position in space and what is going on around them. They sense air currents and provide information on the cat's body to help it land the perfect jump or balance on a narrow ledge. Cats even can change position of their whiskers, along with their ears, eyes, and mouth, to signify different moods.