Park Scientists Gila Monsters, Geysers, and Grizzly Bears In America'S Own Backyard

The national parks have been called America's best idea and some of the best scientific ideas are happening right now inside these protected American spaces that welcome more than 270 million visitors each year. Meet up with scientists studying geysers, grizzlies, salamanders, cacti, and fireflies in some of America's most treasured places: our national parks. Another great addition to the Scientists in the Field series for ages 10 to 14.