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Discover the fascinating world of Prochlorococcus, the most abundant photosynthetic species on Earth, in this 17-minute TED Talk by oceanographer Penny Chisholm. Learn about this ancient marine microbe, first discovered in the mid-1980s, and its potential to revolutionize our understanding of photosynthesis and reduce fossil fuel dependence. Explore how this tiny ocean creature has existed for millions of years and how its genetic code may hold the key to developing sustainable energy solutions for the future.