News

  1. Health & Medicine

    Stopping platelets at the source

    An experimental treatment may prevent harmful clotting and less need for drugs that increase bleeding risk, a study in baboons shows.

    By Nathan Seppa
  2. Animals

    Climate change may favor couch-potato elk

    With drought and rising temperatures in Wyoming, migratory animals suffer while stay-at-home members of the same herd thrive

    By Susan Milius
  3. Life

    Baby’s first bacteria depend on birth route

    C-section newborns may harbor fewer helpful microbes than infants born vaginally.

    By Rachel Ehrenberg
  4. Anthropology

    Lucy fossil gets jolted upright by Big Man

    Scientists have unearthed a 3.6-million-year-old partial hominid skeleton that may recast the iconic species as humanlike walkers.