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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In Science this week: self-assembly of DNA components in solution, and more.

Genetics and Molecular Research retracts two gastric cancer papers for being "substantially equal" to other papers, according to Retraction Watch.

A new analysis indicates that the Ebola virus behind the current West African outbreak is mutating at about the same rate as other Ebola viruses.

With the launch of Scott Kelly into space today, the study of him and his earthbound brother to disentangle the effects of life in space from the effects of genetics kicks off.