Wolves culled the elk. Fewer elk means more aspens can grow. More beavers are attracted to the trees. It's called a trophic ...

Not even park rangers are off limits for angry bull elk.

At least nine elk herds converge upon the mountain slopes of Yellowstone in summer and then ... to create a comprehensive atlas of maps to inform public and private land managers.

The Grand Canyon of the Yellowstone is known for golden cliffs and multiple waterfalls, while Hayden Valley, a former lake bed, offers a marshy habitat that bears, bison, elk and coyotes call home.

Images from the Elk Migration Project Members of the Cody herd traverse Thorofare Plateau—the most remote area in the lower 48—just outside the southeast corner of Yellowstone. The elk bands ...

Linda Veress, a Yellowstone National Park public affairs officer, told the Billings Gazette: "It's common for elk, bison and pronghorn to be at the school grounds, less so bears and wolves.

This grassland valley north of Yellowstone Lake is a highly visited gathering place for bison, elk, coyotes and grizzly bears. In fact, Hayden Valley is home to the largest rut of free roaming ...