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  1. Health & Medicine

    Rewiring Job: Drug spurs nerve growth in stroke-damaged brains

    The natural compound inosine spurs nerve reconnection in rats that have suffered the loss of blood to parts of the brain, suggesting inosine might help people recover from a stroke.

    By Nathan Seppa
  2. Paleontology

    Rain Forest Primeval? Colorado fossils show unexpected diversity

    The size, shape, and riotous variety of fossil leaves unearthed at a site in central Colorado suggest that the region may have been covered with one of the world's first tropical rain forests just 1.4 million years after the demise of the dinosaurs.

    By Sid Perkins

  3. Remember Typewriters?

    Richard Polt, a philosophy professor at Xavier University, celebrates a (nearly) obsolete technology at his “Classic Typewriter Page.”