News

  1. Life

    E. coli caught in the act of evolving

    Researchers track thousands of bacterial generations to document the development of a trait nearly 25 years in the making.

    By Tina Hesman Saey
  2. Health & Medicine

    Oral MS drug passes tests

    A drug called BG-12, similar to a psoriasis medicine used in Germany, supresses multiple sclerosis relapses well, two studies find.

    By Nathan Seppa
  3. Health & Medicine

    Gamblers go all-in on Ritalin

    Risk-taking may rise when healthy people use the stimulant to boost concentration.

    By Laura Sanders
  4. Life

    DNA tags may dictate bee behavior

    Chemical alterations affect genetic activity but not the genes themselves.