bacterial cheaters discovered by Googling; expelled

Not exactly.

Scientists have found that a one-letter change of DNA can transform a microbe with a habit of cheating its peers into a model citizen that cooperates with its bacterial comrades.

Researchers have long been trying to untangle the evolutionary roots of cooperation and altruism. It’s a confounding problem, since evolutionary theory, at least superficially, suggests cheaters should triumph and do-gooders should die out.

Read more about an important hack at the Gordian knot.