
Unlike humans, the majority of mammals possess whiskers, scientifically termed vibrissae (Vi-BRISS-uh). These specialized hairs, found on the face, forehead, and occasionally the legs of animals like cats, dogs, rats, and seals, play a crucial role in navigation and hunting.
Many animals lack sharp vision, and some must hunt or move in low-light conditions where visibility is poor. Additionally, creatures with elongated snouts, such as dogs, often struggle to see objects directly in front of their noses. For these animals, whiskers act as tactile sensors, similar to how humans use their fingers to feel their way in the dark. By brushing or whisking their whiskers against objects, animals can navigate, measure distances, and locate food.
Whiskers are far more than simple hairs. Each whisker is embedded in the skin and surrounded by numerous nerve cells. When a whisker makes contact with an object, these nerve cells transmit signals to the brain, providing detailed sensory information. Rats, for instance, rely on their whiskers to create mental maps of their surroundings. Seals detect fish movements in water through whisker vibrations. Additionally, many animals use their whiskers to assess whether they can squeeze through narrow spaces. Beyond their charming appearance, whiskers are vital tools for survival.
Check out this entertaining video by the BBC, showcasing how cats utilize their whiskers to hunt prey.