Whiskers, also known as vibrissae, are specialized sensory hairs found on many animals, including cats and dogs. These long, stiff hairs are typically located on the face, above the eyes, and on the chin. Whiskers are highly sensitive and help animals detect their surroundings, allowing them to navigate in the dark and judge the width of openings. In addition to their sensory function, whiskers play a role in communication. For example, when a cat is feeling threatened or curious, its whiskers may become more erect. This movement can signal its mood to other animals, helping to convey emotions and intentions effectively.