Ferric iron in water absorbs both red and blue light, leaving only green to reach depths of 5-30 meters (16-100 feet) where most of the cyanobacteria dwelled. “Genetic analysis revealed that ...

Green is seen throughout the show, but its meaning is less clearly defined than the usage of red and blue. Much of it appears to be related to the mysterious and important underground work being ...

Microcystis, a type of cyanobacteria commonly called blue-green algae seen above under high magnification, can bloom in ...