Yellowstone National Park

Giant blob of magma found under Yellowstone's caldera

Bears require bear spray, but how to recycle it?

Grizzly bears are waking up too early

Yellowstone's Thorofare: An escape from civilization

Banned drone may have damaged Yellowstone spring

Road melts from Yellowstone's volcanic heat

What can we learn from the giant volcano under Yellowstone National Park?

Ancient helium escaping from Yellowstone

What triggers supervolcanoes?

Grizzly bears should stay on Endangered Species list, scientists say

Yellowstone's Steamboat Geyser erupts again

How Yellowstone wolves are helping grizzly bears fatten up