Uncategorized

  1. Earth

    Big dam in China may warm Japan

    Construction of the Three Gorges Dam across the Yangtze River in China may lead to warmer temperatures in Japan, because any diversion of water for Chinese agriculture could initiate convection in the Japan Sea that brings warmer water to the surface.

    By Sid Perkins
  2. Health & Medicine

    Natural antidepressant has its limits

    St. John's wort, a popular ingredient in herbal remedies, may not help people with moderate or severe forms of depression.

    By Linda Wang

  3. 18929

    Your article on the importance to an elephant family of having as its leader a matriarch of considerable age reminded me of the postulation that one of the reasons menopause evolved in humans was to allow some women to survive to old age.