Bioluminescent Plankton: A pretty slick ability.

The light is produced through a very simple chemical reaction. When oxygen and the biological substances luciferin and luciferase come together, energy is generated, which is released as light.

But the light can be different depending on the bioluminescent species present. Various colours are possible. While aquatic species frequently glow blue or blue-green because this colour can be seen on land appear yellow and best underwater-fireflies.

The black dragonfish the ability to produce their own light. This is advantageous because many animals cannot see the red light in the depths of the ocean. The light works alternatively as an invisible searchlight. The creature can discover its prey but does not attract attention.