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Sea sawdust cyanobacterium

MUG SHOT  Along with accomplices, cyanobacteria in the genus Trichodesmium, aka sea sawdust (shown), convert phosphorus into an unconventional chemical state, potentially upending scientists’ understanding of nutrient exchanges.

drugs in fingerprints

TOUCH OF DRUGS  This fingerprint is laced with tiny traces of cocaine, as detected by a new method.

gram staining bacteria

COLOR CODED  An old lab technique for differentiating bacteria as either gram-positive (left) or gram-negative (right) has been incorrectly explained for decades.

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