Research overview: arrangement of the mystacial whiskers

The prominent whiskers on a cat's muzzle, the mystacial vibrissae, are arranged in an orderly grid of rows and columns on each side of the face. This overview surveys their typical number and layout, which provides a structured tactile array the cat can use to sense objects and airflow around its head. The regular arrangement means different whiskers sample slightly different positions, giving a spatial map of contacts near the muzzle. The survey relates this organization to how the brain represents whisker input and to the role of the array in prey handling and gap assessment. It discusses the symmetry between the two sides and individual variation in whisker count. Documenting the mystacial arrangement shows that whiskers are not a random fringe but a patterned sensory surface, much like a tactile retina around the mouth, well suited to guiding the precise close-range actions of a predator.