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.

By the start of 2025, the Copper Creek Pack was well-known by producers across the state for the animals’ depredations on livestock in Middle Park. Day said he knew wolves were coming to Pitkin County ...

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

There is no evidence of a mass exodus of animals fleeing Yellowstone, a spokeswoman for the US national park in Wyoming told ...

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

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.

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 ...

Grey wolves are the biggest living members of the dog family. As Encyclopaedia Britannica notes, they’re the “largest ...

When I was younger, I worked as a seasonal park ranger in Yellowstone National Park. I worked in the youth program, where I had the privilege of taking groups of ...