The footage was posted to Instagram by a wildlife photographer, showing the trio moving through the park in close formation.

Yellowstone’s wolf reintroduction has often been described as one of conservation’s clearest trophic-cascade success stories. A new scientific challenge argues that claims about park-wide willow ...

By Lyle Lewis Yellowstone National Park is often told as a story of recovery. Wolves returned and then elk changed their ...

Biology teachers around the world commonly introduce their students to the concept of 'trophic cascades' with an example from Yellowstone National Park in the United States.

Wyoming officials say they recognize the Mollie’s Pack’s historic significance and have taken steps to address the situation, ...

Wolf populations in Yellowstone National Park have myriad impacts on ecosystems, but exactly how those impacts play out in the complex system is still under consideration. New research from Utah State ...

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 ...

A flare up of a disease that’s especially lethal to wolf pups took a toll on Wyoming and Yellowstone National Park wolf numbers in 2025, reducing biologists’ counts to a level last seen when wolves ...

A critique from a team led by Utah State University ecologist Dan MacNulty and published in Forest Ecology and Management has prompted a formal correction to a high-profile study on aspen recovery ...

Editor’s note: This story first appeared in Mountain Journal. YELLOWSTONE NATIONAL PARK — Around Crystal Creek, where the road bridges the Lamar River at the fringe of Yellowstone National Park’s ...