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  1. Life

    Hawaiian caterpillars are first known amphibious insects

    Developing underwater or above, it’s all good for moths that evolved new lifestyle in the islands

    By Susan Milius
  2. Anthropology

    Ancient footprints yield oldest signs of upright gait

    Human ancestors may have been walking with an efficient, extended-leg technique by 3.6 million years ago.

    By Bruce Bower
  3. Health & Medicine

    Ingredient of dark roasted coffees may make them easier on the tummy

    A compound generated in the roasting process appears to reduce acid production in the stomach.

    By Rachel Ehrenberg
  4. Space

    Cosmic telephoto lens shows intense, early star formation

    A recently discovered galaxy gives a detailed view of stellar birth in the young universe.