As dusk began to fall on Yellowstone National Park, the male grizzly bear wandered down a hill in hopes of getting a free ...

Though the wolves might be outnumbered in Yellowstone, the canines have been known to hunt down bison. That being said, they ...

Wolves are known to travel long distances, but one Colorado wolf covered the distance equivalent from Denver to San Francisco in four months.

Wildlife Conservation in Northwest Ecosystems, now commonly known as the Yellowstone Field Course. Initially, it included a ...

One of Colorado’s gray wolves released into the state as part of a reintroduction effort has died in Rocky Mountain National ...

Over the last month, two of Colorado’s latest gray wolf transplants were killed after crossing the border into Wyoming.

A cold morning mist lingers over the wide valleys of Yellowstone National Park as a mighty herd of bison rumbles across the ...

Colorado’s collared gray wolves continued to travel widely last month — even roaming in watersheds that reach into the ...

CPW wolf activity map shows wolves traveled to watersheds across a huge area of the state over the past month.

America's first national ... The park has 60% of the world’s geysers, as well as hot springs and mud pots. It is also home to diverse wildlife with the largest concentration of mammals in the Lower 48 ...