The significance of bioluminescence in marine organisms lies in its various ecological roles, including predation, communication, and defense. Many marine species, such as certain fish, jellyfish, and bacteria, utilize bioluminescence to lure prey, attract mates, or confuse predators. This phenomenon is an adaptation that enhances survival in the dark depths of the ocean. The study of bioluminescence also has applications in biotechnology and medicine, where it is used as a marker in research and development. Understanding this process reveals the diversity and complexity of marine ecosystems.