Uncategorized

  1. Humans

    DNA highlights Native American die-off

    A genetic analysis points to widespread New World deaths after Europeans arrived.

    By Bruce Bower
  2. Science & Society

    Scientists’ TV image isn’t really as diabolical as they sometimes worry

    By Rachel Ehrenberg
  3. Humans

    Saving the Last Supper

    Tourists and cosmetics seem to be threatening da Vinci’s masterpiece.

    By Rachel Ehrenberg
  4. Earth

    Arctic has taken a turn for the warmer

    Northern climate has changed substantially in the last five years, and the shift is probably permanent.

    By Janet Raloff
  5. Humans

    Neandertals’ mammoth building project

    Stone Age people’s evolutionary cousins may have constructed earliest bone structures.