I have a candidate called the Cosmic Ray Guy. He is really Cool and he is from Outerspace. Every night he attacks Earth and kills lots of Earthlings with his deadly rays. He shoots a gun with a very high frequency blast. He laughs because he knows you cant shoot back because he is lightyears away. So when its dark and the Sun is quiet he kills billions of bacteria near the surface of the Ocean. But the cyanobacteria in the diatoms are safe even during the day when the Sun is shining. They are protected by the calcium shell of the diatoms floating in the Sea basking in the rays of the Sun. They like Cosmic Ray Guy because he scares away the bacteria which feed off their energy source. Even the Zooplankton have to descend further away when Cosmic Ray guy is around. So the phytoplankton love him and bloom big swirls in the Ocean whenever he is around. That is what makes the world COOL.