Research overview: whisker-guided navigation in darkness

Even with excellent night vision, cats encounter conditions too dark or too close for their eyes, and here whiskers take over as the primary spatial sense. This overview surveys how cats use vibrissae to navigate in darkness, detecting obstacles, surfaces, and air currents around the head and body. The whiskers can sense objects before the face contacts them and can register the airflow disturbances created by nearby structures, helping the cat move without bumping into things. The survey relates this to the complementary roles of the senses, with whiskers filling the gap left by vision at very short range and in the absence of light. It frames tactile sensing as essential to confident movement through cluttered, lightless environments. Understanding whisker-guided navigation explains why a cat can thread through furniture in a dark room and why intact, healthy whiskers matter for its spatial awareness.