Life
Rusty rocks reveal ancient origin of photosynthesis
Iron oxide in the world's oldest sedimentary rocks suggest photosynthesis evolved 370 million years earlier than we thought, not long after life began
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Iron oxide in the world's oldest sedimentary rocks suggest photosynthesis evolved 370 million years earlier than we thought, not long after life began
Far from being passive hangers-on, symbiotic microbes may shape the evolution of the plants and animals that play host to them