Sid Perkins' Articles

  • News

    Fossil footprints could be monumental

    Trace fossils found in a vacant lot in a small town in Utah, including the footprints of meat-eating dinosaurs, could soon be protected as part of a new U.S. national monument.
  • News

    More acid rain in East Asia's future

    Large increases in Asian industrial emissions of nitrogen oxides in the next 30 years could lead to a tripling of the acid rain there due to those pollutants.
  • News

    Midlatitude bogs store carbon best

    Sediments in lakes and bogs along the eastern coast of the United States show that midlatitude bodies of water have sequestered higher amounts of carbon than others since the last ice age.
  • News

    Seismic simulations help track tanks

    New computer models developed to analyze how seismic vibrations travel through uneven terrain can also be used to identify and track heavy vehicles such as tanks and trains.
  • News

    Large earthquake would ravage Oregon

    A magnitude 8.5 earthquake off the coast of Oregon would devastate portions of the state, kill thousands of residents, and wrack the economy there for more than a decade.
  • News

    Geologists take magnetic view through ice

    A new map of the magnetic anomalies in Antarctica and the seafloor surrounding the continent is giving researchers a fresh tool to use in analyzing geologic features that lie hidden beneath thousands of feet of ice or storm-tossed seas.
  • Feature

    Beyond Bones

    The forensic analysis of trace fossils such as footprints, nests, burrows, and even coprolites—fossilized feces—reveal subtle clues about ancient species, their behavior, and their environment.
  • News

    Early Mammal's Jaw Lost Its Groove

    A tiny fossil skull found in 195-million-year-old Chinese sediments provides evidence that crucial features of mammal anatomy evolved more than 45 million years earlier than previously thought.