News

  1. Ecosystems

    Sharks use math to hunt

    Marine predators cruise the seas using fractal principles.

    By Alexandra Witze
  2. Life

    Missing chemicals on Titan could signal life

    Methane-based organisms on one of Saturn’s moons might be consuming the materials.

    By Ron Cowen
  3. Earth

    Possible snake shortage looms

    Declines among species in Europe and Africa raise herpetologists’ worries of widespread population losses.

    By Susan Milius
  4. Climate

    With warming, some commercial fish may boom and bust

    Higher temps in Arctic waters might be good for some species but not for others, new research suggests.

    By Sid Perkins
  5. Health & Medicine

    In youth hockey, more contact means more injuries

    Concussions are three times more common among 11- to 12-year-olds in leagues that permit checking, a Canadian study finds.