The ecosystems that contain Yellowstone and Glacier National Park have populations of grizzlies that are rebounding so much ...

From stunning artwork to evidence of elaborate prehistoric butchering, Live Science takes a look at seven amazing caves that ...

Montana's lawsuit against Yellowstone's bison plan contradicts park scientists' research on population sustainability and ...

Scientists have found proof that the early humans who lived in North America during the last Ice Age mainly hunted and ate ...

“Despite higher bison numbers than envisioned in the 2000 [Interagency Bison Management Plan], bison-human conflicts outside YNP have been reduced over time,” according to the NPS. “There have been no ...

Wildlife recently passed a major milestone as it's been 30 years since wolves were reintroduced in Yellowstone National Park.