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07/12/2007: "Natural selection witnessed in the wild"

When an invasive bacteria ravaged the male embryos of the Blue Moon butterfly, it left populations that were nearly entirely female. But the males made an extraordinary comeback, going from 1 percent to 39 percent of the population in less than a year. Researchers witnessed this resurgence, and credited it to the rise of a suppressor gene that stopped the male-killing bacteria in its tracks.

[ Natural selection, and population bottlenecks, lead to adaptation. We need something like that about now... ]

http://www.sciencedaily.com/releases/2007/07/070712143300.htm