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.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... How the wolf changed Yellowstone 30 years after ...

After nearly three decades of celebrating the reintroduction of wolves to Yellowstone, scientists now question the extent of their impact on the ecosystem. A new study challenges the widely accepted ...

In 1995, Yellowstone National Park became the centre of a conservation experiment that would later be celebrated across the ...

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 ...