News

  1. Health & Medicine

    Antioxidant Booster: Protein curbs lung damage caused by smoke

    A protein called Nrf2 defends against emphysema by activating dozens of genes that combat free radicals and toxic pollutants, a study in mice suggests.

    By Nathan Seppa
  2. Health & Medicine

    Stones-Be-Gone: Gene-targeting drug restores chemical balance protecting the gallbladder

    A drug tested in mice prevents gallstones by stimulating a gene that controls levels of different chemicals in the gallbladder.

    By David Shiga
  3. Anthropology

    South American Surprise: Ancient farmers settled in Uruguay’s wetlands

    The discovery of a 4,200-year-old farming settlement in Uruguay challenges traditional notions of where early South American societies took root.

    By Bruce Bower
  4. Animals

    Grow-Slow Potion: Pheromone keeps bee youngsters youthful

    Researchers have identified a compound made by the senior workers in a honeybee colony that prolongs the time that teenage bees stay home babysitting.