In the parched summer of 1988, wildfires ripped through more than one-third of Yellowstone National Park during the most severe fire year in park history. Approximately 1.2 million acres scorched by ...

Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the larger ecosystem of Yellowstone National Park.

The onslaught of destructive fire and climate change risks turning an area of Western forests three times the size of Yellowstone National Park — about 2.2 million acres — into ecosystems ...

Yellowstone livestream camera captures the tense interaction at a time when grizzly bears are emerging from hibernation and obviously hungry. ... with the bear ultimately vanishing into the forest.

As grizzly bear populations in Yellowstone National Park have grown, supervisors of the six national forests surrounding the park in Montana, Wyoming and Idaho have had to be more vigilant ...

McWethy has studied the remains of the forest, which formed at an altitude of 10,000 feet about 6,000 years ago when temperatures in the Greater Yellowstone Ecosystem were similar to their current ...

Yellowstone livestream camera captures the tense interaction at a time when grizzly bears are emerging from hibernation and obviously hungry. ... with the bear ultimately vanishing into the forest.

Yellowstone livestream camera captures the tense interaction at a time when grizzly bears are emerging from hibernation and obviously hungry. ... with the bear ultimately vanishing into the forest.

The forest began to struggle about 5,500 years ago due to drops in summer temperatures. This transformed what was a high mountain tree-filled landscape into the alpine tundra there today.