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  1. Feline Finding: Mutations produce black house cats, jaguars

    Mutations in two different genes, which lead to black fur in house cats, jaguars, and jaguarundis, may have protected the black felines from an epidemic long ago.

    By John Travis
  2. Health & Medicine

    Miscarriages foretell heart trouble

    Women who spontaneously lose one or more fetuses during early pregnancy are about 50 percent more likely than other women to later suffer ischemic heart disease.

    By Ben Harder
  3. Health & Medicine

    Pregnancy Woe Uncovered: Protein may underlie preeclampsia

    New evidence links a placental protein to preeclampsia symptoms and may lead to new ways of detecting and treating the disease.

    By Kendall Morgan
  4. Health & Medicine

    Portrait of a cancer drug at work

    Newly revealed protein structures show how a breast cancer drug functions.