It's Stromatolites Versus Foraminifera, With The Fate Of Earth At Stake

Stromatolites, "layered rocks", are structures made of calcium carbonate and shaped by the actions of photosynthetic cyanobacteria and other microbes that trapped and bound grains of coastal sediment into fine layers. They showed up in great abundance along shorelines all over the world about 3.5 billion years ago and remain the earliest visible manifestation of life on Earth. read more

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