Craig Beals, Montana's 2015 Teacher of the Year, is on a lifelong mission to explore and reveal the planet's most surprising secrets. He wants to know, "Is Yellowstone going to blow?"
Following in the footsteps of a wandering Florida black bear, three friends leave civilization and become immersed in a vast and unexplored wildlife corridor stretching from the Everglades to the Florida-Alabama border.
Seven cities. Five continents. One Doctor.
If you think you know North America, you can think again.
Explore the endurance of the human body and spirit through ultra marathon runner Nikki Kimball’s quest to become the fastest person in history to run Vermont’s 273-mile Long Trail.
To discover what could happen if vampires migrate to a warming America, Casey must hack through Mexico's jungles to a cave his buddy Scotty has dubbed "the torture chamber".
Comets have fascinated, even terrified us for thousands of years. This year, a particularly massive chunk of ice and rock is coming our way.
Real-time stories of the world’s most charismatic animals around the globe.