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  1. Humans

    Letters from the December 22 & 29, 2007, issue of Science News

    Amylase with your veggies Your article (“Advantage: Starch,” SN: 9/15/07, p. 173) notes how groups of people may have different numbers of copies of the amylase gene. Is it correct then that individuals have varying numbers of the gene as well? If so, would this explain why some people don’t like meat and become vegetarians […]

    By Science News
  2. Health & Medicine

    Vitamin D: Blacks need much more

    To achieve healthy concentrations of vitamin D, many African-Americans may need hefty daily supplementation.

    By Janet Raloff
  3. Humans

    Fishing curbs can lead to profit

    New economic models suggest that fishing crews that cut back long enough to let stocks rebound will find compensation in higher profits later.