Whiskers, like hair and nails, do fall out and are replaced. Whiskers are two to three times thicker than the cat's hair. Whiskers are rooted very deep in the cat's face, in an area rich in nerves and blood vessels. In addition to having the long tactile hairs on their cheeks, cats also have shorter ones above their eyebrows, on their chin and on the back of their front legs. Measuring an opening Whiskers help the cat feel his way around .
Whiskers are so sensitive that they can detect the slightest directional change in a breeze.
At night, for example, this helps a cat slink its way through a room and not bump into anything. The air currents in the room change depending on where pieces of furniture are located. As the cat walks through the room and approaches the couch, he'll know which direction to turn based on the change in air current around the couch. In addition to having sensory properties, a cat's whiskers are also a good indicator of his mood . When a cat is angry or feels defensive, the whiskers will be pulled back.