Bioluminescence in marine organisms serves multiple roles, primarily for communication, predation, and defense. Many species produce light through biochemical reactions, using it to attract mates, navigate in dark waters, or lure prey. For example, certain deep-sea fish and squid utilize bioluminescent lures to entice smaller fish. Additionally, some organisms light up as a defense mechanism, startling predators or illuminating their escape routes. This phenomenon provides significant ecological advantages, facilitating interactions within marine food webs and enhancing survival strategies for various marine species.