Uncategorized

  1. Paleontology

    Fine Toothcomb: New fossils add to primate-origins debate

    The discovery of 40-million-year-old teeth and jaw fragments belonging to ancient forms of lorises and bushbabies doubles the age of the fossil record for a major primate group.

    By Bruce Bower
  2. Materials Science

    A Hard Little Lesson: Squeezed nanospheres grow superstrong

    A substance not known for its hardness—silicon—becomes one of the hardest of materials when formed into ultrasmall spheres.

    By Peter Weiss
  3. Earth

    Dioxin Dumps: Burning exposed trash pollutes soil

    The practice of burning refuse in the open in many underdeveloped countries creates prodigious quantities of harmful polychlorinated compounds.

    By Ben Harder
  4. Earth

    Clean Casualties: Everyday chemicals may shift ecosystems

    Trace amounts of the chemical concoctions used to battle bacteria in kitchens and bathrooms may kill off algae, an effect that researchers say may have far-reaching consequences.