How the dragonfish lights up?

The dragonfish lights up through a process called bioluminescence, which involves the production of light by specific cells in its body. These fish possess specialized organs called photophores that contain bacteria or luminescent proteins, allowing them to emit light in dark ocean depths. This bioluminescence serves various purposes, including communication, attracting prey, and camouflage against predators from below. The ability to control the intensity and color of the light enhances their survival in deep-sea environments.