Marine Mystery Solved: Ancient Origins of Bioluminescence Uncovered

Study explores an ancient lineage of marine invertebrates, including soft corals, pushes back the previous oldest dated example of trait by nearly 300 million years.

According to a new study by scientists from the Smithsonian’s National Museum of Natural History, bioluminescence originated in animals at least 540 million years ago among a group of marine invertebrates known as octocorals.

The results, published in the Proceedings of the Royal Society B, push back the previous record for the luminous trait’s oldest dated emergence in animals by nearly 300 million years, and could one day help scientists decode why the ability to produce light evolved in the first place.