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  1. Humans

    Letters from the February 25, 2006, issue of Science News

    A squirt could hurt The fine piece about invasive sea squirts (“Squirt Alert,” SN: 12/24&31/05, p. 411) states that the critters maintain an unappetizing surface pH of 2. Does this make these mats harmful to touch? Andrew J. DolsonRichmond, Va. Robert Whitlatch of the University of Connecticut, who grows Didemnum in the lab, says it’s […]

    By Science News
  2. Health & Medicine

    Saw palmetto flunks prostate exam

    An herbal supplement used by 2.5 million men in the United States has failed to outperform a dummy capsule taken for urinary problems.

    By Nathan Seppa

  3. Smart shoppers use unconscious tactics

    Consumers make better decisions about major purchases if they heed the power of their unconscious minds.