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Could synthetic biology help save nature? If we created organisms based on new, say, 6-base DNA, we might be able to use them to help preserve existing environments without the danger of cross-breeding with ‘natural’ flora and fauna, says designer Alexandra Daisy Ginsberg. With contributions from plant geneticist Zachary Lippman and evolutionary biologist Andreas Wagner. (Photo: Alexandra Daisy Ginsberg, Tommaso Lanza, Tom Mawby)