Cats have four rows of whiskers, two on either side of their nose. These whiskers, also known as vibrissae, are longer and stiffer than the cat's other hairs, and they are embedded more deeply in the skin. The whiskers are sensitive to touch and can help the cat navigate its environment, judge distances, and detect changes in air currents. The whiskers also play a role in communication, as cats use them to signal mood and intent to other cats and to humans. It's important not to trim or cut a cat's whiskers, as they are an important sensory organ for the cat and removing them can cause disorientation and stress.