The day after two hikers were mauled by a grizzly in Yellowstone, tourists yelled at rangers who were warning them to get away from grizzlies and

Yellowstone National Park visitors recently had a front row seat to watch a pack of wolves hunting a herd of bison, leaving them in awe of nature.

A raw display of power and determination was witnessed by Yellowstone tourists Monday as a wolf battled a much larger grizzly bear over a carcass in a river. The accompanying footage was captured by Julie Argyle of Wild Love Images. Her description: "Volume up! What an incredible encounter this morning."

The roars of a grizzly echoed from a riverbank in Yellowstone National Park on Sunday, as it postured with a wolf over a bison carcass. A biologist

You mess with the calf, you get the herd. It's estimated that around 4,500 bison roam around Yellowstone National Park. Considering there's only 90 to 120 wolves in the same area, you'd imagine that the bison have the upper hand.

"Free-ranging wolves in Yellowstone: where are they gonna go? What are they gonna do?" A must see trailer for one of my favorite documentary films of the year so far. Lost Wolves of Yellowstone is a new IMAX Original Documentary premiering later in ...

The award-winning documentary “Lost Wolves of Yellowstone,” in IMAX, is now showing on San Diego’s largest IMAX screen, in the giant dome of the Fleet Science ...

Sharing is not caring at Yellowstone National Park... in fact, it doesn't appear like it's even an option. Most people would assume that the biggest part of the battle out in the wild is bringing down the prey.

Once the bear reached the area where the wolves were, the wolves must’ve smelled him ... then all chaos broke out.”

A prominent wolf that lived among Yellowstone's most famous wolf pack is believed to have been illegally shot and killed just outside the park last month, according to wildlife experts. NOTE: The video is from a previous report. The wolf was likely killed ...