Wolf and grizzly bear sightings are fairly common in Yellowstone. But scenes such as these, illustrating the life-or-death ...

A new clip out of Yellowstone offers a rare look at the brutal reality of kleptoparasitism in the backcountry. Watch a pack ...

Visitors and photographers in Yellowstone National Park recently captured rare footage of grizzly bears and wolves clashing over a drowned bison carcass in the Yellowstone River. Experts say such ...

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 ...

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 ...