Yellowstone National Park is often told as a story of recovery. Wolves returned and then elk changed their behavior. Willows and aspens then rebounded and rivers, it is said, changed course. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow ...

What Yellowstone Actually Proved Fourteen grey wolves were released into Yellowstone National Park in January 1995. Within a ...

They are known for living and hunting in packs, exactly why they were brought back into the national park over 30 years ago.

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 ...

If not for a series of tones broadcasting her location, no one would’ve known she had died. Like dozens of other Yellowstone National Park wolves involved in a three-decade-long study, researchers ...

After a drought of new aspen growth in Yellowstone's northern range, wolves appear to have flipped the script for these iconic trees, ushering in the first new generation of aspen to reach the forest ...

Nathan Varley, Phd, wildlife ecologist and founder of Yellowstone Wolf Tracker, has led his work in wildlife tourism by keeping the mission of Yellowstone National Park at its core: to preserve ...

8-Mile pack pups from two breeding females’ litters excitedly greet adults returning to the den. Pup survival to independence increases significantly with increasing numbers of adult pack members, who ...