How can deep-sea fish see in the dark?
Fish that stay in the deepest section of the oceans are bioluminescent, meaning they glow in the dark. Certain chemicals in the body of these fish produce a glowing light that helps them discover their way through the dark waters. They additionally have large eyes and feelers, which help them to locate prey. In fact, it is because of these glowing fish that the deepest section of the ocean is acknowledged as the ‘twilight zone’.
