Researchers Report on Work to Bring Back Extinct Frog

[unable to retrieve full-text content]It could be years before scientists succeed in bringing species back from extinction, but they are thinking of ways to give new life to creatures like woolly mammoths and weird frogs.

Source: http://www.nytimes.com/2013/03/19/science/earth/research-to-bring-back-extinct-frog-points-to-new-path-and-quandaries.html?partner=rss&emc=rss

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