Park Scientists: Gila Monsters, Geysers, and Grizzly Bears in America's Own Backyard

America's National Parks are protected places and have become living museums for as many as 270 million visitors per year! In addition, researchers are able to perform long term studies of a wide number of subjects from salamanders the size of thumbnails to gigantic geothermal geysers. These parks are natural laboratories for scientists. Did you know that Yellowstone National Park in Wyoming sits on top of an active (and very large) volcano? This volcano is monitored and studied on a daily ba…