MTPR

Brian Ohs

Grizzly bear at Swan Lake Flats in Yellowstone National Park.
Jim Peaco (PD)

The U.S. Interior Department announced changes Monday to how federal agencies will apply the Endangered Species Act (ESA). There is concern that the changes could affect Yellowstone grizzly bears' threatened status in the future.

The bears' status under the Endangered Species Act has been tied up in court for years.