Can scientists improve on evolution?

Video producer's note: To some, it may seem like Caltech professor Frances Arnold is playing God. But to hear her say it, she is improving upon what nature started and solving some real-world issues in the process.



via CNN.com - Technology http://rss.cnn.com/~r/rss/edition_technology/~3/Lcf9nA7IrOI/index.html