Biologists first documented the end of a half-century-long era of grizzly range expansion in the Yellowstone area two years ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National Park. (National Park Service file photo courtesy of Jeremy ...

On Aug. 28, scientists from Washington and Lee University, the National Park Service and the University of Wyoming published research in Science magazine shedding new light on the value of bison ...

Editor’s note: This is the third installment of Howl, a five-part written series and podcast season produced in partnership between the Idaho Capital Sun, States Newsroom and Boise State Public Radio.

Truth be told, most Yellowstone visitors have likely never heard of the trophic cascade or deeply considered the wolves’ impact on the food chain and the larger ecosystem. But like the ecosystem, ...