Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State ...

The restoration of gray wolves in Yellowstone National Park has helped revive an aspen tree population unique to the region, ...

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State University ...

For the first time in 80 years, a new generation of fully-fledged aspen trees has grown in Yellowstone’s northern range.

James Watt led a similar effort to privatize natural resources for mining, energy development, logging, and sprawl.

Hidden high in the White Mountains of eastern California, a gnarled, weathered tree quietly holds a staggering secret — it’s nearly 5,000 years old.

Whose ox is getting gored by federal budget cuts is a hot topic these days, and compared with people who will lose their health insurance or jobs, duck hunters are in pretty good shape.

Whether its the imminent threat of climate change, destructive weather systems or the toll of human impact, some of Earth's most incredible, important and enchanting corners are facing a precarious ...

The wildfire that destroyed a Grand Canyon lodge this month was the latest blow to the National Park Service staffing and funding cuts.