News

  1. Health & Medicine

    Breast density signals tamoxifen’s effectiveness

    Decreasing breast density signals the drug tamoxifen is working in women at risk of developing breast cancer.

    By Nathan Seppa
  2. Life

    Hawaii’s honeyeater birds tricked taxonomists

    DNA from old museum specimens reveals evolutionary look-alikes.

    By Susan Milius
  3. Archaeology

    Tools with handles even more ancient

    An analysis of stone tools excavated at a Syrian site indicates that, around 70,000 years ago, Neandertals used a tarlike adhesive to affix sharpened items to handles.

    By Bruce Bower
  4. Health & Medicine

    Stronger role for a breast cancer drug

    Going beyond its original role as an add-on for chemotherapy, the breast cancer drug lapatinib, when taken with another kind of frontline drug, may find use for patients with the HER2-positive form of the cancer.