8 brilliant bioluminescent creatures

Organisms have evolved the ability to produce light for different reasons: to trick predators, to attract mates and even to communicate. The diversity of creatures with this ability is equally astonishing, from the common firefly to deep-sea dwellers that are rarely seen by humans. What's also fascinating is that many of these creatures are not closely related, and bioluminescent traits have evolved separately at least 30 times.

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