Forever Young
Fruit flies are the mules, if you will, of genetic research; they breed fast, and their simple chromosomes are ideal for the study of heredity. Now a group of U.S. biologists has found a way to freeze living fly embryos. Not only does that guarantee a stable fly supply, but it is a landmark achievement in another sense: fruit flies are the most complex organisms ever to be lab frozen and revived. The technique could lead, albeit far down the road, to the freezing of mammals -- even humans, maybe.
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DAN GLASS, an activist who glued himself to British Prime Minister Gordon Brown in 2008, explaining why protesters will break the law at the climate change conference at Copenhagen this week
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