Investigation began after the wolf's research collar was found in a tree.

Another wolf from Yellowstone National Park's famous Junction Butte Pack killed in Montana is being investigated as a ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects in history. Since their reintroduction in 1995, they have fundamentally ...

A new peer-reviewed study reports that claims of a “world-leading” trophic cascade in Yellowstone National Park are not supported, citing problems with the methods used in earlier research. A newly pu ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

At the age of 11 years, 9 months, Wolf 1090F has earned the title of the oldest living wolf in Yellowstone, which is ...

This kind of behavior is not encouraged. A man was caught on video approaching and spraying at a Yellowstone wolf pack. Bystanders shouted warnings. Park officials advise staying at least 100 yards ...

Yellowstone National Park could be swarming with wolves again, all thanks to artificial intelligence. It seems that the researchers have hit the bullseye with their new approach to conservation or ...

Yellowstone wolf watchers were gathered in awe on the morning of Oct. 6, ogling a pack of at least five black wolves roaming through the sagebrush near Lamar Valley. But the crowd soon saw something ...