This Jellyfish Has 24 Eyes — A Biologist Explains What It Actually Sees With Them
Box jellyfish possess a remarkable visual system with 24 eyes, categorized into four distinct types: upper lens, lower lens, pit, and slit eyes. These eyes are not uniform; they vary in structure, direction, and function, with lens eyes capable of image formation and simpler eyes detecting light and movement. This distributed visual system, housed in rhopalia that act like pendulums, allows the jellyfish to gather diverse information about its surroundings, including objects above and below the water. AI
