Rare footage shows Yellowstone’s Wapiti Lake wolf pack successfully hunting a bison in the deep snows of Hayden Valley.

YELLOWSTONE NATIONAL PARK, Wyo. — Standing at the edge of a bluff overlooking the Lamar River in Yellowstone National Park, TJ Ammond stared through binoculars at hundreds of buffalo dotting the ...

In Yellowstone, however, some 200 buffalo roamed free, ostensibly under the protection of the federal government. But even in the park they were not safe. Poachers could make five hundred dollars ...