Authorities have been unable to find the grizzly bear that killed a woman just outside Yellowstone National Park late last month. Last week, they called off the search. That fatal attack has renewed calls to remove Endangered Species Act protections for grizzlies, so there are fewer bears on the landscape.
The latest data shows the population of grizzly bears in and around the park at 965. That's more than quadruple the number that existed when they were first protected by the Endangered Species Act in 1975.
