Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem ...

Wolves are among Yellowstone's most popular sights – so popular and so closely watched they can become accustomed to seeing ...

Yellowstone has long been a mecca for scientists studying how predators affect everything from elk grazing to vegetation height. They are still debating how to make sense of what they’ve learned.

Claims that wolves have rescued Yellowstone National Park aspen trees through a ‘trophic cascade’ oversimplify a complex ...

Yellowstone National Park’s wolves have been contentious ever since they were reintroduced in 1995. Within the park, the ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

Yellowstone's wolves are helping a new generation of young aspen trees to grow tall and join the forest canopy — the first new generation of such trees in Yellowstone's northern range in 80 years.

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

Johnnie LeFaiver took her son to the Lamar Valley in Yellowstone National Park this summer, because the experience of watching wolves there 20 years ago seared into her memory and she wanted Micah to ...

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.