Whiskers

Photo of a cat's whiskers
Photo by Steve Voght
Attribution-Sharealike

Whiskers are hairs that grow around the nose and mouth of most animals. On people, whiskers are usually called a beard or moustache.
Animals use their whiskers to tell when they are near something, as the whisker hairs hit things before the animal's face does. Cats have the most well-known whiskers. The cat in the picture is yawning, and you can clearly see its whiskers.

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