Tribal leaders cited their ancestral connection to the Yellowstone area and the cultural importance of grizzly bears to their people.
Check it out:

Leaders of American Indian tribes in the Rocky Mountains and Great Plains have joined an effort to retain federal protections for grizzly bears in and around Yellowstone National Park.

The U.S. Fish and Wildlife Service is expected to decide this year whether it will move to lift protections for the roughly 1,000 grizzlies that scientists say live in the Yellowstone region of Montana, Idaho and Wyoming.