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.

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

In Yellowstone, the long, rising howl of a gray wolf has always felt like pure mystery, a sound that hints at meaning but keeps its distance. Now artificial intelligence is starting to pull that ...

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

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

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.

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

This spring, the prolific author, former park naturalist and wolf interpreter has turned his focus inward, a memoir that also includes stories of moose, a grizzly bear and wolves.

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 ...

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 ...