infinity-imagined: “Scanning electron micrographs of diatoms, microscopic algae that form the base of the food chain and produce of Earth’s oxygen. ” The beautiful base of the pyramid of biology, feeding our air, land and life.
Coccolithophores are single celled eukaryotic phytoplanktons that synthesize intricate exoskeletons from crystals of calcium carbonate. The functions of these coccoliths are relatively unknown. When nutrient and light conditions are optimal, coccolithophores can form massive plankton blooms that are visible from space. When large numbers of these organisms accumulate on the ocean floor they can form deposits of chalk, such as the White Cliffs of Dover.