News

  1. Paleontology

    Dinos molted for a new look

    In one species, adolescents appear to have sprouted a new type of feathers as they matured.

    By Sid Perkins
  2. Materials Science

    Infection, kill thyself

    Scientists devise wound dressings that trick bacteria into suicide.

    By Rachel Ehrenberg
  3. Humans

    Vision gets better with the right mind-set

    Volunteers’ eyesight improved when they believed that they could see particularly well.

    By Bruce Bower
  4. Health & Medicine

    Body makes its own morphine

    A study in mice suggests other mammals, including humans, can produce the painkiller in their bodies.

    By Tina Hesman Saey
  5. Animals

    Chimps may be aware of others’ deaths

    Reactions of chimps to dead companions and infants suggest a basic realization of what death entails.