State fights efforts to change Yellowstone-ecosystem population goal if counting method also is switched.
Twin brothers Frank and John Craighead launched a 12-year radio-tracking study of Yellowstone area grizzly bears in 1959.
The U.S. Fish and Wildlife Service marked a conservation milestone today by announcing it would remove Endangered Species Act protections for Yellowstone-area grizzly bears.
Federal plans to let states manage Yellowstone-area grizzly bears — including by hunting — rekindles debate about whether gunning down grizzlies will undo years of conservation work.
Agencies, companies have different policies to protect workers in grizzly backcountry; few have written requirements mandating carrying bear pepper spray.