Why Do Jellyfish Glow in the Dark?

Jellyfish can make their own light, like tiny glowing lanterns in the ocean. This helps them shine bright when they're swimming, startle enemies, or attract food, it’s like having a magical flashlight inside your body!

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Examples

A jellyfish turns on its light to startle a fish that is trying to eat it.
When two jellyfish swim together, they glow in sync like a living dance party.
A baby jellyfish uses its tiny flash of light to attract plankton for dinner.

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Categories: Biology · bioluminescence· jellyfish· marine biology· light production· ocean life