Polarised light micrograph of Rivularia cyanobacteria and diatom. Cyanobacteria are a photosynthesising form of bacteria. They were among the first lifeforms to appear on Earth, and oxygenated the atmosphere. They are found worldwide in most habitats, including oceans, fresh water, and soil. Magnification: x372 when printed 10 cm wide.

---

Size: 6914px × 4626px
Location:
Photo credit: © MAREK MIS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alga, algae, aquatic, basal, botany, colony, cyanobacteria, diatom, diatoms, filamentous, heterocyst, life, light, lm, micrograph, microlife, microorganism, microscope, microscopy, polarised, polarized, pond, rivularia, single-celled, unicellular, water