The sweet potato whitefly acquired a new bacterium from the genus Rickettsia. As a result, infected whiteflies develop faster, are more likely to survive to adulthood, and lay more eggs, especially more female eggs.
The bacterium induces a higher percentage of daughters because the bacterium is genetically transferred only by females. In less than a decade, the population count of whiteflies with Rickettsia went from 1% to 95%. Biological success proliferates, no matter how it is arrived at.