Cyanobacteria Quotes & Sayings
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Top Cyanobacteria Quotes
Blue-green algae, or cyanobacteria, were the first photosynthesizers. They breathed in carbon dioxide and breathed out oxygen. Oxygen is a volatile gas; it causes iron to rust (oxidation) and wood to burn (vigorous oxidation). When cyanobacteria first appeared, the oxygen they breathed out was toxic to nearly all other forms of life. The resulting extinction is called the oxygen catastrophe. After the cyanobacteria pumped Earth's atmosphere and water full of toxic oxygen, creatures evolved that took advantage of the gas's volatile nature to enable new biological processes. We are the descendants of those first oxygen-breathers. Many details of this history remain uncertain; the world of a billion years ago is difficult to reconstruct. — Randall Munroe
stromatolites - a kind of living rock made by billions and billions of microscopic cyanobacteria. The tiny respirations of these organisms over millions of years largely created Earth's oxygen-rich atmosphere, paving the way for more complex living things. — Bill Bryson