News

  1. Life

    Rivalry helps fruit flies maintain brainpower

    In lab tests, males dim mentally after generations without competitors.

    By Susan Milius
  2. Physics

    Quantum droplet discovered

    Electrons and holes gather to form a tiny, liquidlike particle.

    By Andrew Grant
  3. Climate

    Extreme heat on the rise

    Recent years saw an increase in peak high temperatures on land despite Earth’s stalled averages.

    By Beth Mole
  4. Anthropology

    Cancer proposed as spur for evolution of dark-skinned ancestors

    Fatal ailments might have sparked DNA changes that yielded dark skin in human ancestors.

    By Bruce Bower
  5. Health & Medicine

    Camels in Saudi Arabia teeming with MERS virus

    Three-quarters of animals tested had signs of the MERS virus, which can be deadly in people.