Uncategorized

  1. Ecosystems

    Sawfish Central

    Sawfish will soon be getting United Nations protection from exploitation. Right now, the only U.S. state where these ancient fish can generally be found—and then, only rarely—is Florida. Here’s a site to view the fish, a member of the shark family, and link to research aimed at rescuing populations of its seven beleaguered species worldwide. […]

    By Science News
  2. Math

    Sudoku and Graph Theory

    Solving sudoku puzzles may not require mathematics, but mathematicians have found plenty to say about the popular brainteasers.

    By Julie Rehmeyer
  3. Health & Medicine

    Spermicide Flip Side: Compound may promote papillomavirus infection

    The widely used spermicide nonoxynol-9 may boost the infectiousness of human papillomavirus, mouse tests show.