Bioluminescent organisms create light through chemical reactions. Jellyfish, plankton, squid, fish and bacteria use light for defence, camouflage, communication or attracting prey. It is especially common in the deep ocean, where sunlight does not reach.
What we found
Bioluminescence is different from simply reflecting light. Molecules react with oxygen, often controlled by an enzyme, and release energy as visible light. Many species produce blue-green light because those wavelengths travel well through seawater. A glowing wave near shore can be caused by tiny plankton, while deep-sea animals may carry their own light organs or partner with luminous bacteria. The Ridbusters then compare the wording with the original sources, look for the conditions of each observation and check whether another explanation could fit. That turns a surprising headline into a trail a young investigator can follow: claim, test, result and remaining uncertainty. Bioluminescent organisms create light through chemical reactions.