Some dinoflagellate plankton species are bioluminescent, with a remarkable ability to produce light to make themselves and the water they swim in glow. Now, researchers have found that for one dinoflagellate species (Lingulodinium polyedra), this bioluminescence is also a defense mechanism that helps them ward off the copepod grazers that would like to eat them.
Click here for original story, Dinoflagellate plankton glow so that their predators won’t eat them
Source: ScienceDaily