A review study shows that Yellowstone National Park's reintroduction of wolves was more complicated and predator conservation ...

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

While a flood of news articles, Facebook posts and YouTube videos have attributed the boost in aspen trees to wolves, ...

On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National Park. (National Park Service file photo courtesy of Jeremy ...

In 1995, 14 wolves were relocated to Yellowstone National Park from an area near Jasper National Park in Alberta, Canada. These 14 wolves became the first to roam Yellowstone in seventy years since ...

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.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

D E N V E R, Jan. 14 -- In a victory for environmentalists and a defeat for ranchers, a federal appeals court on Thursday upheld the right of the gray wolf to roam freely through Yellowstone National ...

Tourists visiting Yellowstone National Park on October 6 were left stunned after witnessing a man walk straight toward a wild wolf pack in what authorities are calling a highly dangerous and reckless ...

Mature elk can run 40 mph when they become so inspired, and recent footage from Yellowstone National Park shows that young elk are likewise fleet of foot when their lives are at stake. The ...