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Pictured above is the last thing you'll see before your brain is infected by interstellar radiation, turning you into a slobbering fungal demon intent on destroying every living thing within biting distance. Or, it's a clutch of glow-in-the-dark mushrooms.

mycology.cornell.edu

So clutch.

Glow-in-the-dark fungi is actually very real and very not-from-space, and is also known as foxfire. The bioluminescence is caused by a simple chemical reaction within the fungus. The reason for this trait, however, is as yet unknown, and greatly debated. One common theory is that it is meant to attract insects, which in turn spread the seeds of the fungus. Please note that this still leaves room for our "insanity-farting mind bore from beyond the stars" theory until the source of the luminescence is officially determined.

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