News

  1. Neuroscience

    Busy neurons don’t always draw blood

    Study of mice suggests caution in inferring the activity of the brain’s neurons from functional MRI results.

    By Laura Sanders
  2. Life

    Animal source of Ebola outbreak eludes scientists

    Researchers are trying to determine whether bats or bush meat transmitted the Ebola virus to people in West Africa.

    By Tina Hesman Saey
  3. Life

    Grizzly bears master healthy obesity

    Tuned insulin signals explain how grizzly bears can fatten up for hibernation in the winter without developing diabetes.

    By Meghan Rosen
  4. Oceans

    World’s largest ocean dead zone may shrink as Earth warms

    North Pacific dead zone may grow smaller, not expand, as climate change weakens Pacific Ocean trade winds.