The accompanying footage, captured last week in Yellowstone National Park, shows a collared wolf pup carrying a signpost ...

Yellowstone visitors had a front-row seat to the stark reality of the contest between predator and prey early Sunday, when ...

An adolescent wolf was caught on camera running across a road carrying a wooden signpost in its mouth.

A viral photo of a wolf carrying a grizzly warning sign is more than just funny—it’s a reminder of who really runs the park.

New tech is helping researchers better understand Yellowstone's apex predators.

Toddlers are always up to no good... even in the Animal Kingdom. The National Park Service says that Yellowstone National Park is home to the largest concentration of mammals in the lower 48 states.

A Yellowstone wolf showed its more playful side Monday, somehow removing and carrying off a sign put up warning tourists ...

It is a busy time right now in Yellowstone National Park with the grizzly bears waking up from hibernation as Spring weather ...

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

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. The wolf was ...

Every dinner is fought for out in the wild, and Yellowstone National Park is often the backdrop for food-fueled-face-offs that are caught on camera. Right now, most bears are coming out of hibernation ...