Feature

  1. Math

    Best Guess

    Economists are exploring the use of betting markets as tools for predicting the consequences of policy decisions by a government, corporation, or other institution.

    By Erica Klarreich
  2. Anthropology

    Erectus Ahoy

    A researcher who explores the nautical abilities of Stone Age people by building rafts and having crews row them across stretches of ocean contends that language and other cognitive advances emerged 900,000 years ago with Homo erectus, not considerably later among modern humans, as is usually assumed.

    By Bruce Bower
  3. Earth

    When Genes Escape

    The focus of the debate over transgenic crops has changed from whether genes will escape to what difference it will make when they do.