Year in review: Fluke extinction surprises lab
Accident, not competition, wiped out E. coli
![Flasks](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/12/122615_22_feat.jpg?fit=860%2C460&ssl=1)
CAUSE OF DEATH Researchers previously believed that the extinction in one flask of bacteria in a long-term evolution experiment was the result of survival of the fittest. This year, scientists discovered the bacteria's demise was more likely an accident.
NEERJA HAJELA AND BRIAN BAER/MICHIGAN STATE UNIV.