Just some pictures of bioluminescent algae off the coast of california that i thought were pretty. Scientists still don't actually know why this occurs since its of dubious evolutionary value. two of the leading theories are almost polar opposites. one is that its meant to startle potential predators away. The other is that its meant to attract fish that prey on the algae's potential predators (zooplankton.) From an article in The Guardian. The streaks are from glow sticks which produce the same effect in a similar chemical reaction.