News

  1. Low body heat lengthens mouse lives

    Mice genetically engineered to have slightly lower-than-normal body temperatures lived significantly longer than mice with normal body temperatures.

    By Christen Brownlee
  2. Physics

    Heavy finding

    Physicists have discovered never-before-seen subatomic particles related to protons and neutrons but laden with exotic, heavy subparticles called bottom quarks.

    By Peter Weiss
  3. Health & Medicine

    Bug be gone

    An experimental device that combines a special comb with a forceful air blower kills head lice and their nits.

    By Nathan Seppa

  4. Jet lag might hasten death in elderly

    Mimicking jet lag in old mice brought on an early death in the animals.

    By Christen Brownlee
  5. Animals

    Tough policing deters cheating in insects

    In insect societies that have tough police, it's coercion, rather than kinship, that's preventing crime.