News

  1. Health & Medicine

    Protein may signal heart problems

    A protein already linked to inflammation is also a strong predictor of heart problems.

    By Nathan Seppa
  2. Health & Medicine

    Natural fluoride isn’t quite enough

    In the absence of a public water-fluoridation program in eastern Germany, natural background concentrations of fluoride in drinking water affect children’s dental health.

    By Ben Harder
  3. Earth

    Child-care sites, health threats

    Federal agencies have completed the first national study of lead, pesticides, and allergens in U.S. child-care facilities.

    By Ben Harder
  4. Animals

    Hawkmoths can still see colors at night

    For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.