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.

"In the newest addition to the ever-popular and authoritative nonfiction Scientists in the Field series, the team behindThe Frog Scientist take you on a research trip to New Caledonia in the Pacific Ocean to follow crows in aviaries and in the wild while answering many thought-provoking questions like: "Can a crow outsmart a scientist?" Remarkably engaging narrative nonfiction coupled with beautiful photographs, this is a trip you won't regret booking!"--...

"Asteroids come in all shapes and sizes--and hit our planet in them, too. But what happens if a catastrophically large one approaches earth? By looking on the ground at historical asteroid craters and present-day falls, and up into space for the big ones yet to come, a wide variety of scientists are trying to figure out how to track asteroids--and how to avoid devastating impacts in the future."--

"What if tornadoes could be stopped or slowed down? In this addition to the critically-acclaimed Scientist in the Field series, scientist Robin Tanamachi and her team are trying to come up with a way to predict tornadoes with even greater accuracy, and save countless lives across America's heartland."--

"It's July on Alaska's North Slope, and scientist Denver Holt is in Utqiagvik surveying nests. Denver has been coming here since 1992, and the snowy owls he studies have been coming here much longer: thousands of years. With its mix of coastal, low-elevation tundra and a rich presence of lemmings, the North Slope is the only area in Alaska where snowy owls regularly nest. How do snowy owls decide where they will nest? How do they manage to arrive...