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  1. Readers comment on penguin sex, math and more

    By Science News Staff
  2. Health & Medicine

    How one woman became the exception to her family’s Alzheimer’s history

    A single mutation in a woman who evaded Alzheimer’s may point to new ways to treat the disease.

    By Laura Sanders
  3. Health & Medicine

    How the new coronavirus stacks up against SARS and MERS

    Coronaviruses are a diverse family that may be becoming more threatening to people.

    By Tina Hesman Saey
  4. Health & Medicine

    Levels of certain proteins in the blood may act as concussion biomarkers

    College athletes who suffered concussions had elevated blood levels of three proteins, a potential chemical sign that one day may aid diagnosis.