News

  1. Earth

    Studies aim to resolve confusion over mercury risks from fish

    Several new papers suggest strategies by which American diners can negotiate a mercury minefield to tap dietary benefits in fish.

    By Janet Raloff
  2. Health & Medicine

    Marker protein may help breast cancer screening

    High amounts of EGFR can show up in the blood as much as 17 months before disease is diagnosed, a study finds.

    By Nathan Seppa
  3. Animals

    Male spiders have safe(r) sex with siblings

    In a cannibalistic species, brothers minimize risk when mating with their sisters.

    By Susan Milius
  4. Anthropology

    Lice hang ancient date on first clothes

    Genetic analysis puts garment origin at 190,000 years ago.