For grizzly and black bears, respectively, per-sighting values are $16 and $14, aggregate annual sighting values are $6.9 and $9.7 million, and annual per-bear viewing values are $46,000 and $15,000.

A tourist hoping to capture a magical moment at Yellowstone National Park did so after correctly foreseeing the movement of a bison herd.

Across America, a handful of extraordinary national parks give travelers the rare chance to see endangered animals thriving ...

A pair of reckless tourists were nearly killed by a charging bison in Yellowstone National Park after being repeatedly warned ...

They not only balance the food web but also create revenue for national parks. The restoration of gray wolves at Yellowstone ...

The extreme form of parachute sport in which people jump from the edges of cliffs and buildings is banned across all of the ...

Florida skateboarder Justin Bright is more than 2,600km into an attempt to skate from Mexico to Alaska along a route he ...

"People underestimate animals." Onlooker sparks outrage with video of national park visitor's dangerous behavior near grizzly ...

Getting high around a campfire in a national park, especially in Wyoming, is likelier to get you prosecuted under a new ...

The project is part of a growing chain of more than 2,500 workshops popping up around the world to help reduce rampant ...

Discover the hidden gems of Idaho's national parks: from archaeological sites to volcanic parks, there's something for every ...

The Beef Industry Plan doesn’t strengthen the West — it destroys our fragile ecosystems and puts wildlife at risk while ...