News

  1. Health & Medicine

    Caffeine resets body’s clock

    Caffeine can push the body’s clock back.

    By Laura Sanders
  2. Environment

    Home fires, farm fumes are leading causes of air-pollution deaths

    Deadly air pollution comes from surprising sources, but toxicity of different types is still up in the air.

    By Beth Mole
  3. Animals

    Dogs flub problem-solving test

    Confronting a tough task, dogs are more likely than wolves to give up and gaze at a human

    By Susan Milius
  4. Science & Society

    Short memory can be good strategy

    Game theory reveals that there’s a limit to the effectiveness of relying on prior results to predict competitors’ behavior.