Extinction in lab bottle was a fluke, experiment finds

Evolution ‘replay’ shows that unknown catastrophe wiped out bacterial strain

flasks

FLUKE FLASK  During a long-term evolution experiment, bacteria in the flask designated Ara-3 have undergone surprising changes. One population developed the ability to eat citrate. A catastrophe drove another population to extinction, researchers have discovered.

NEERJA HAJELA AND BRIAN BAER/MICHIGAN STATE UNIVERSITY

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