The incident occurred at Grand Prismatic Spring near Old Faithful as tourists were enjoying a close-up view of the famous and ...

Sitting in an old-growth spruce fir forest, Doug Smith says he can see firsthand the impact of reintroducing wolves on the larger ecosystem of Yellowstone National Park. Long before Yellowstone became ...

Springtime can only mean one thing for Yellowstone National Park: The newborn baby animals are coming out to play.

A New Jersey man was gored by a bison after rangers at Yellowstone National Park said he got too close to the animal. This marks the second time a visitor at the Wyoming park has been injured by a ...

Prior to wolf reintroduction, Yellowstone’s elk population had exploded to unsustainable levels without their natural predators, resulting in severe overgrazing. The return of wolves dramatically ...

BILLINGS, Mont. - Wolves and other predators continue to control the number of elk along the northern fringes of Yellowstone National Park, state and federal biologists say.

While wolves have been branded as villains in the past, in reality, they play an essential role in ecosystems. When wolves went absent from Yellowstone for much of the 20th century, the ecological web ...

Still, he adds, a large portion of wild elk wear GPS collars, providing insight should they move into the state. Lacking a plan Utah doesn't yet have a management plan for grizzly bears, according ...

Yellowstone has done its job so well, in fact, that the herd now consistently exceeds 4,000 bison, a number large enough to provoke fears of overgrazing in the park and of bison roaming beyond its ...

Prior to wolf reintroduction, Yellowstone’s Northern Range elk herd had grown to unsustainable numbers—reaching approximately 19,000 animals by the mid-1990s. Without their primary predator, elk ...

Though it's now a symbol of the park, the gray wolf was absent from Yellowstone for nearly 70 years. The species was hunted to eradication by around 1926, leading to ecosystem chaos in the region.

The overgrazing that fueled the Dust Bowl spawned the Soil Conservation ... In Yellowstone and in the absence of wolves, elk populations expanded to the point where elk died by the thousands ...