Uncategorized

  1. Health & Medicine

    Gut feeling

    A bacterial compound can reverse intestinal disease in a mouse, providing the first example of a microbial product “networking” with the mammalian immune system to quell inflammation.

    By Nathan Seppa
  2. Earth

    Life down deep

    Deep-sea sediments provide a habitat for diverse and abundant populations of microorganisms and may be home to as much as 70 percent of the bacteria on the planet, new studies suggest.

    By Sid Perkins
  3. Paleontology

    Walking tall

    Some types of the largest flying reptiles ever known were well adapted to life on the ground.

    By Sid Perkins
  4. Health & Medicine

    Lead’s legacy

    High levels of lead in the blood during childhood are associated with smaller brains and with an increased risk for violent criminal behavior, report two new studies.