Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in ...

Scientists debunk decades-long study claiming wolves' reintroduction triggered a dramatic transformation in Yellowstone.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

Caught between wolves, mountain lions and grizzly bears, elk are struggling to fend off predators. A trail camera video shows ...

Yellowstone National Park is home to plenty of dangerous animals. Surprisingly, though, the main cause of injury is far more mundane than you might think.

As congressional Republicans push to delist gray wolf and grizzly bear populations from Endangered Species Act protections, they now have an ally in the administration who has taken a skeptical view ...

For grizzly bears, wolves, lynx, wolverine, and bison there is no “boundary” around Yellowstone National Park. The forests in this area — the Greater Yellowstone Ecosystem — extend beyond Yellowstone ...