Uncategorized

  1. Health & Medicine

    Coffee not linked to heart arrhythmia

    A large survey of insured people finds no extra hospitalizations in java swillers.

    By Nathan Seppa
  2. Paleontology

    Ancient DNA suggests polar bears evolved recently

    A study of a rare Norwegian fossil narrows down when polar bears evolved and finds they are closely related to modern-day brown bears in Alaska.

    By Sid Perkins
  3. Archaeology

    Stone Age engraving traditions appear on ostrich eggshells

    Fragments indicate symbolic communication on 60,000-year-old water containers.

    By Bruce Bower
  4. Humans

    Titanic study: It takes time to do the right thing

    Comparing the Titanic and Lusitania disasters suggests that people in a crisis are more likely to maintain social norms if they have longer to react.