Uncategorized

  1. 19727

    This article cites evidence of a severe genetic bottleneck, suggesting that perhaps no more than three pregnant females launched the expanding western Atlantic red lionfish population. How can there be “pregnant females” in an animal with the external fertilization described in the article? Do you mean a founder population of as few as three individuals? […]

    By Science News
  2. Ecosystems

    Bad-News Beauties

    Discarded aquarium fish are the likely source of an alien species that's breeding in the Atlantic and could threaten economically important U.S. fisheries.

    By Janet Raloff
  3. Humans

    Letters from the September 9, 2006, issue of Science News

    Brother bother If having biological older brothers correlates to homosexuality (“Gay Males’ Sibling Link: Men’s homosexuality tied to having older brothers,” SN: 7/1/06, p.