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Articles on Evolution

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The bamboo coral Isidella displaying bioluminescence in the Caribbean in 2009. Sönke Johnsen

From glowing corals to vomiting shrimp, animals have used bioluminescence to communicate for millions of years – here’s what scientists still don’t know about it

Dozens of animals, some on land but many in the ocean, can produce light within their bodies through chemical reactions. Scientists are still trying to understand when and why this trait developed.

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