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  1. Humans

    Numbers suggest mating with humans might have led to Neandertals’ demise

    By Matt Crenson

  2. From the Archive: Carp eat other fish out

    History repeats with another round of carp invasion.

    By Science News

  3. Evolution’s Wedges

    Finding the genes that drive one species into two.

    By Daniel Strain
  4. Earth

    Death of a Continent, Birth of an Ocean

    Africa’s Afar region gives glimpses of geology in action.

    By Alexandra Witze
  5. Health & Medicine

    Mind-Controlled

    Linking brain and computer may soon lead to practical prosthetics for daily life.

    By Susan Gaidos

  6. Science Past from the issue of July 1, 1961

    WINTERGREEN VS.