News

  1. Health & Medicine

    Kill or Be Killed: Tumor protein offs patrolling immune cells

    Many human cancers may evade surveillance by exploiting a protein normally found on certain immune cells.

    By John Travis
  2. 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
  3. 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