From: Maria Popova
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Microbial oceanographer Penny Chisholm discovered the smallest photosynthetic cell on the planet, which she and her team first mistook for noise in the instrument.

Life, even at its simplest, is so complex and marvelous: Each of these tiny organisms, called Prochlorococcus, is only 1/100 the width of a human hair yet has 2,000 genes in its genome

(from a 2018 TED talk)