Can It Be Done?

Woolly mammoths once roamed the world, and there's been talk lately about the possibility of bringing these and other extinct organisms back to life — Scientific American's David Biello asks whether such a feat is even possible.

It's already happened, he notes, albeit briefly. In 2003, a clone of the last Iberian ibex — which died a few years prior — was born, though it only lived for a few minutes because of lung defect.

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