News

  1. Genetics

    Men who lose Y chromosome have high risk of cancer

    Losing the Y chromosome in blood cells may bring on cancer and shorten men’s lives.

    By Tina Hesman Saey
  2. Plants

    How female ferns make younger neighbors male

    Precocious female ferns release a partly formed sexual-identity hormone, and nearby laggards finish it and go masculine.

    By Susan Milius
  3. Genetics

    Easter Islanders sailed to Americas, DNA suggests

    Genetic ties among present-day populations point to sea crossings centuries before European contact with Easter Island.

    By Bruce Bower
  4. Science & Society

    E-commerce sites personalize search results to maximize profits

    Travel and retail websites alter search results depending on whether consumers use smartphones or particular web browsers.