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  1. Letters

    Right-left preference In the article “Body in mind” (SN: 10/25/08, p. 24), Dr. Casasanto speaks of results with people who are left-handed or right-handed. But no mention is made of people who are innately ambidextrous, as in my family. Has he worked with any of these people? What about people who are almost ambidextrous but […]

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  2. Life

    Step-by-step Evolution

    Hard to find, but very fruitful when found, transitional fossils fill in the gaps in the paleontological record.

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  3. Life

    A Most Private Evolution

    The most dramatic examples of the power of evolutionary theory may come from the strange and ugly stuff — biology too dumb to have been designed.