Theory On Snowmass Ice Age Mastodons: QuicksandScientist at the Denver Museum of Nature & Science say they're testing a theory that an earthquake or a series of earthquakes turned an ancient lakebed into quicksand.
Scientists Show Off Ice Age Fossils In DenverThousands of bones have made their way from Colorado's high country to Denver, and on Tuesday scientists at the Museum of Nature & Science showed off the fossils.