Feature

  1. Animal Science

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  2. Chimp Brains Show Humanlike Tilt to Left

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  3. Biology

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  4. Front Matter

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  5. Biomedicine

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  6. Leafing out the Tree of Life

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  7. Science News Books

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  8. Biology

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  9. Gene Pushes Cells into Forced Retirement

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  10. Back Matter

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  11. Zeroing in on an Infinite Number of Primes

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  12. Xenon Injects Images with Brightness

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