Earth
Why do oceans glow at night?
Because tiny living things can make light when water moves. Some plankton glow when waves, fish or footsteps disturb them. Their light is a defence signal, like a tiny underwater alarm.
Earth
Because tiny living things can make light when water moves. Some plankton glow when waves, fish or footsteps disturb them. Their light is a defence signal, like a tiny underwater alarm.