News

  1. Chemistry

    Lakes reveal low phosphate concentrations

    Researchers using a new technique have found that previous measurements of phosphate, an important nutrient in lake ecosystems, have grossly overestimated its concentration.

    By Jessica Gorman
  2. Animals

    He and she cooperate on anti-aphrodisiacs

    Scientists have for the first time identified a chemical that serves as a butterfly anti-aphrodisiac.

    By Susan Milius
  3. Anthropology

    Gene test probes Neandertal origins

    A new DNA study supports the theory that Neandertals didn't contribute to the evolution of modern humans.

    By Bruce Bower
  4. Health & Medicine

    DNA vaccine for measles shows promise

    A measles vaccine consisting of just a couple of DNA strands proves effective in monkeys, possibly presenting an alternative or complementary vaccine for the standard immunization now used worldwide.