When Columbus neared the coast of the New World, he thought he saw lights of civilization twinkling on the shores. What he really saw, though, was likely bioluminescence from thriving marine life. The creation of light by living creatures, known to scientists as bioluminescence, is an evolved trait that benefits the organism by offering camouflage, mimicry, sexual attraction and more. This lush, lazy light is what we see in fields full of fireflies at night, or on the jellyfish as they bob in the night sea.
The shark you see above, however, is not bioluminescent. The gentleman below can explain.
Dr. David Gruber on a Rebreather
Enter David Gruber, Associate Professor Biology and Environmental Science at Baruch College. He recently made some exciting discoveries involving another interaction of light and life: biofluorescence.…