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, ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... How the wolf changed Yellowstone 30 years after ...

For the past 15 years, Luke Painter has been traveling to the northern range of Yellowstone National Park, where mountains rise and tributaries carve valleys of sage, willows and trees. This includes ...

These rare kills in Washington State have biologists searching for answers. “Everyone always assumes wolves have the upper ...

Colorado passed a wolf reintroduction plan in November 2020, and 10 wolves were reintroduced into the state in December 2023. Opponents are now trying to stop this reintroduction plan, the Denver Post ...