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

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 ...

Update: On Dec. 11, 2025, Colorado Parks and Wildlife officials captured and returned a wolf into Grand County, Colorado, that had traveled into New Mexico. Since their reintroduction to the state in ...