The Latest Breaking News from Yellowstone

Horror footage shows the moment a tourist reaches out her hand to touch a bison while on a path near the Yellowstone National Park in Wyoming, US.

A raised tail means a bison is unhappy, and it's time to move back and give it space

A man who intentionally disturbed a newborn bison calf and caused its death is being sought by Yellowstone National Park law enforcement.

The newborn got separated from its mother while trying to cross the Lamar River. A man stepped in to try to help, but only ended the animal's chances of survival, the National Park Service says.

The calf began to approach people and cars after a man pushed it up a slope onto a road

The woman seems completely unaware of just how dangerous these massive animals can be

Large carnivores like wolves are returning to areas they used to occupy, leading scientists to wonder whether they may once again fulfill important ecological roles. But wolves’ return to the landscape can affect other nearby animals in complex ways.

Male bison can weigh up to 2,000lb, and the wood just couldn't take the weight

Bear spray can be effective on most animals, but only if you're not standing downwind