News

  1. Life

    Treatment helps paralyzed rats walk

    A combination of drugs, electrical stimulation and therapy can restore lost connections between lower limbs and brain.

    By Laura Sanders
  2. Life

    Blue-green algae release chemical suspected in some amphibian deformities

    Retinoic acid levels high in waterways rich in cyanobacteria blooms.

    By Susan Milius
  3. Earth

    Supervolcanoes evolve superquickly

    Huge underground chambers of magma appear and erupt within just several centuries, a study of California rocks suggests.

    By Alexandra Witze
  4. Chemistry

    Youngsters can sniff out old people’s scent

    Body odor changes detectably with age, becoming mellower in men and not at all offensive in either sex — even to young people.