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  1. Humans

    Letters from the August 12, 2006, issue of Science News

    Dates of contention Are the dates quoted in “Stones of Contention: Tiny Homo species tied to ancient tool tradition” (SN: 6/3/06, p. 341) correct? I didn’t think Homo existed as a genus 840,000 years ago. David AdamsBoothwyn, Pa. Fossil finds indicate that the Homo genus originated roughly 2.4 million years ago.—B. Bower No juicy story […]

    By Science News
  2. Math

    Math Lit

    Cryptography and other mathematical topics play key roles in several recent novels.

    By Ivars Peterson
  3. Humans

    Letters from the August 5, 2006, issue of Science News

    Rod is the spoiler While I applaud the work that is looking at the biochemical correlates of aggressive and delinquent behavior, it is important to emphasize that environmental factors still predominate when we are searching for the roots of violence (“Violent Developments: Disruptive kids grow into their behavior,” SN: 5/27/06, p.