How do some jellyfish light up?

It is most commonly seen among certain insect species like fireflies and glowworms (a form of insect larvae); some mushrooms and fungi also glow in the dark. ... read more

Some jellyfish drop their tentacles as a form of distraction that can confuse predators. Predators are typically attracted by the light of the falling tentacle and focus their attention on it instead of the jellyfish's body, which gives the jellyfish the chance to escape. read more

how do they light up Jellyfish produce light called bioluminescence. Bioluminesence is a prosess that is a chemical reaction that produces a blue kind of light. also Some hydrozoan jellies also possess another protein known as green fluorescent protein, which takes the blue light and shifts it to a green color. read more