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

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

Visitors to Yellowstone National Park were horrified when a man recently got dangerously close to a pack of wolves. In a now-viral video shared by Keith Allen Kerbs on Oct. 6, an unidentified man ...

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.