For 17 years Rick Wallen was the team leader of Yellowstone National Park’s bison ecology program. He retired six years ago ...

Desertfest 2025 just got darker, doomier, heavier and more exciting with the addition of 20 artists to the line-up ...

Dirt at the bottom of a lake bed in America's oldest national park sheds light on the massive herds that once roamed the west ...