Grizzly Bear, Grizzly Bears, North America, Rocky Mountains, Ursus arctos, Western U.S., Wyoming, Greater Yellowstone Ecosystem, Greater Yellowstone area, Yellowstone, Yellowstone National Park, animal, animals, bear, bears, fauna, female, grizzlies, grizzly, griz, horizontal, mammal, mammals, mountain, mountains, wildlife, frost, frosty, summer