Disease outbreak cuts Wyoming, Yellowstone wolf numbers to lowest level since reintroduction era

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 were still reestablishing following the species’ historic 1995-96 reintroduction. “It was the lowest number of wolves in 20 years,” Wyoming Game […]