This is called bioluminescence. In deep forests, certain mushrooms create a spooky green light to attract bugs. When the bugs land on them, they accidentally pick up spores and carry them to new places!

If you walk through a tropical forest at night, you might spot a soft, ghostly green glow coming from the ground or rotting logs. This isn't magic; it's bioluminescence, a chemical reaction that allows certain mushrooms to produce their own light.
Unlike plants that use seeds, mushrooms use spores to reproduce. Most mushrooms rely on the wind to carry their spores away, but those living in the still, windless air of deep forests need a plan B.
This glow is caused by a molecule called luciferin reacting with oxygen and an enzyme. It's the same basic process that fireflies use to light up their butts!
Glowing mushrooms use light as a clever marketing tool. By turning themselves into tiny neon signs, they ensure their offspring can travel far and wide, even in the darkest, most stagnant parts of the jungle.