Feature

  1. Knotting Weakens a Polymer Molecule

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  2. Edible Compound Mimics Insulin

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  3. Physics

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  4. Front Matter

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  5. Getting to the Root of Protein Production

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  6. More than One Way to Mutate a Cell’s DNA

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  7. Parasites Make Frogs Grow Extra Legs

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  8. Science News Books

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  9. Last Drop Squeezed from Recycled Tires

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  10. Back Matter

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  11. Plants Signal Stress with a Toluene Burst

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  12. Astronomy

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