State biologists shared a minimum count of pups for one of the newly-named packs in Colorado, marking the third pack to have ...

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Aspen trees are thriving again in Yellowstone for the first time in 80 years, thanks to wolves reintroduced in the 1990s that helped control elk herds.

Colorado Parks and Wildlife currently has staff on the ground in Pitkin County working to locate and kill a second member of ...

The apex predators, restored to the park in 1995, appear to be keeping the local population of plant-eating elk in check, ...

Some travelers start from Jackson Hole, Wyoming, to drive the Lower Loop, while others base themselves in West Yellowstone or ...

These territorial canines, who live and hunt in packs, were reintroduced to the national park 30 years ago. It’s good news for the park’s quaking aspen.

A bison lived to fight another day in Yellowstone National Park recently, fending off a wolf with a well-timed kick in the jaw before escaping. Tour guide William Fabian said he saw the “exhausted and ...

The U.S. Fish and Wildlife Service has identified how two of Colorado's reintroduced gray wolves died earlier this year.

They say you're always stronger in numbers, but this wolf pack learned the hard way that that's not always the case.

On the flip side, wolves have been known to hunt down bison, and often need a pack to take down just one of the big beasts. As you might imagine, bison are rather tough creatures and can be quite the ...

The helicopter was flying low above a remote snow-covered mountain ridge outside Hinton, Alberta, Canada, when pilot Clay ...