YELLOWSTONE NATIONAL PARK, Wyo. - Hiking along the small, purling Blacktail Deer Creek, Douglas W. Smith, a wolf biologist, makes his way through a lush curtain of willows. Nearly absent for decades, ...

Wildlife cameras positioned throughout Yellowstone National Park have captured something researchers didn't expect to see.

This winter saw the most wolves from Yellowstone National Park killed in about a century. That's because states neighboring the park changed hunting rules in an effort to reduce the animals' numbers.

The reintroduction of wolves to Yellowstone National Park in the 1990s had a cascading effect that benefited the entire ecosystem, a new study finds. The finding shows how the return or loss of apex ...

One of the factors that draws tourists towards Yellowstone is the incredible wildlife. Although there have been many instances where people wandered too close to the wildlife, such as with bison, ...

YELLOWSTONE NATIONAL PARK – Snow crunched underfoot as Mark Hebblewhite scanned the ridgelines of Canada’s Banff National Park. It was 1995, and the young biologist, fresh out of undergrad, was ...

"Free-ranging wolves in Yellowstone - where are they going to go? What are they going to do?" I can't start this review without admitting that I have loved wolves all of my life. When I was in third ...

In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow.