Some living things create a glow through chemistry. No sunlight needs to be stored first.
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01 · THE BIG IDEARead deeper+
IN PLAIN ENGLISH
Bioluminescence is light produced by a chemical reaction inside a living organism. NOAA describes it across marine life, from bacteria and algae to fish and squid.
02 · EXAMPLERead deeper+
IN PLAIN ENGLISH
A glowing marine organism is producing light. Fluorescence is different: it absorbs light and emits it again. Two things that look luminous can therefore work in different ways.