Life On A Young Planet by Andrew H. Knoll

The First Three Billion Years of Evolution on Earth

A concise synthesis of the first three billion years of life on Earth, presenting geological, chemical, and fossil evidence that traces how simple microbial communities arose, diversified, and transformed planetary environments; the book explains the record of stromatolites and microfossils, isotopic and geochemical signatures of early metabolism, the advent of photosynthesis and the progressive oxygenation of the atmosphere, and how these biological innovations reworked Earth’s surface and set the stage for eukaryotic life and later multicellularity.

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