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February 9, 2012

Butterflies fast forward evolution to evade death

Butterflies fast forward evolution to evade death - Technology & science - Science - LiveScience - msnbc.com:

'via Blog this'

A population of butterflies has evolved in a flash on a South Pacific island to fend off a deadly parasite.

The proportion of male Blue Moon butterflies dropped to a precarious 1 percent as the parasite targeted males. Then, within the span of a mere 10 generations, the males evolved an immunity that allowed their population share to soar to nearly 40 percent — all in less than a year.

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