The return of wolves and other predators to Yellowstone has reduced elk browsing, allowing aspen trees to grow back for the first time in decades.

One of Colorado’s female gray wolves died in July after traveling to Wyoming. This is the third of the state’s reintroduced ...

One of the wolves being tracked by Colorado researchers was found dead in Wyoming in late July, state officials announced ...

A federal judge in Missoula on Tuesday vacated the federal government’s determination that gray wolves in the Western United ...

This is the third wolf this year relocated to Colorado that died in Wyoming. A male wolf, 2513, that was part of the group ...

An uncollared wolf has killed enough livestock in Rio Blanco County to meet Colorado Parks and Wildlife’s definition of ...