Uncategorized

  1. Animals

    Dolphins wield tools of the sea

    A long-term study of dolphins living off Australia’s coast finds that a small number of them, mostly females, frequently use sea sponges to forage for fish on the ocean floor.

    By Bruce Bower
  2. Space

    New window on the high-energy universe

    New telescope finds that the high-energy share of gamma-ray bursts arrive at Earth significantly later than the low-energy portion.

    By Ron Cowen
  3. Health & Medicine

    Pollutants in the womb can trigger adult cancers

    Mouse study shows fetal exposure to carcinogens may pose long-term risks.

    By Janet Raloff
  4. Health & Medicine

    Antioxidants fail to prevent prostate cancer

    Selenium, vitamins C, E don’t lower incidence of prostate cancer in two large trials.