News

  1. Pulling antioxidants starves cancers

    Realizing that many cancers depend on antioxidants for their survival, researchers have successfully designed a dietary strategy that suppresses breast cancer growth and spread, at least in animals.

    By Janet Raloff

  2. Cigarette smoke worsens heart attacks

    Breathing in smoke from another person's cigarette causes blood changes that reduce the likelihood that an individual will survive a heart attack.

    By Janet Raloff
  3. Anthropology

    . . . and then takes some lumps

    The skeletal diversity that many scientists use to divide up fossil species in our evolutionary past masks a genetic unity that actually encompassed relatively few species, contend researchers in an opposing camp.

    By Bruce Bower
  4. Anthropology

    Our family tree does the splits…

    Large-scale changes in climate and habitats may have sparked the evolution of many new animal species in Africa beginning 7 million to 5 million years ago, including a string of new species in the human evolutionary family.