Unexpected factsSourced
Not reflected light.
Light made by life.
Bioluminescence produces light through chemical reactions in living organisms, from marine animals to some fungi.
A glow does not
need a light bulb.
Summary / translation: Unbubly · CC BY-SA 4.0
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Bioluminescence · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-09-30