Bison back up. It’s an animal-eat-animal world out there, especially in Yellowstone National Park. There are almost 70 ...

A pack of wolves took down a bison in Yellowstone National Park and attracted a crowd of people — that the rest of the bison herd then charged into. Wildlife photographer Jeff Vanuga captured a ...

Thanks to conservation efforts, both the native herd and the introduced herd ... "Part of it is just the bison exploring ...

The wolves closed the gap, and then pounced — separating a bison cow from its herd before killing it for a quick meal. The rest of the distraught herd kept running. And instead of running away ...

Visitors to Lehigh County's Trexler Nature Preserve can now see bison in two separate pastures, due to a shift in herd dynamics following the death of herd patriarch Big Boy.

Wild bison that cross into Colorado generally come from the Book Cliffs herd across the Utah border, near Grand Junction. About 130 animals make up the subherd closest to the Colorado border ...

In 1995, the Yellowstone bison herd was designated by the Montana state legislature as a species in need of disease management, as some bison carry brucellosis. The Montana state legislature then ...

A herd of bison (not the one pictured here) charged into a crowd of people in Yellowstone National Park. Photo by Tevin Trinh via Unsplash A pack of wolves took down a bison in Yellowstone ...