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March 2013

Volume 66, Issue 3

cover: In this image of a tadpole embryo, the developing stomach is highlighted in blue and pink. Recent research has shown that the position and left–right asymmetry of the stomach and other organs are dictated by bioelectric gradients, which can be manipulated by genetic and pharmacological tools. To learn more about new results in bioelectric signaling, turn to the story on page 16. (Image courtesy of Michael Levin, Tufts University.)

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