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  1. Sequencing the dead to save the living

    Reviving ancient genomes of long-extinct creatures offers a window into past extinctions—and may help prevent future die outs.

    By Ashley Yeager

  2. No gene is an island

    Even as biologists catalog the discrete parts of life forms, an emerging picture reveals that life’s functions arise from interconnectedness.

    By Patrick Barry

  3. The decider

    Informing the debate over the reality of ‘free will’ requires learning something about the lateral habenula.

    By Tom Siegfried
  4. Space

    First detection of carbon dioxide in an exoplanet

    Moving one step closer to finding the fingerprints of life in a habitable planet beyond the solar system, astronomers have for the first time detected carbon dioxide in the atmosphere of an extrasolar planet.