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  1. Outside Looking In

    A new wave of research offers insights into the nature and causes of Asperger syndrome, a condition related to autism that's characterized by social cluelessness, repetitive behavior, and unusually narrow interests.

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  2. Animals

    Crouching Scientist, Hidden Dragonfly

    Although dragonflies are among the most familiar of insects, science is just beginning to unravel their complex life stories.

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  3. 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.