Viral video captures a wolf stalking a tourist hiking through Lamar River Valley in Yellowstone National Park before he used spray to fend it off.

A frightening video captured the moment a bison charged at and chased a child at Yellowstone National Park, sparking widespread concern.

A viral video captured a massive bison popping a tourist vehicle's tire in Yellowstone National Park, leading to widespread humorous reactions across the internet.

A grandfather who was hurled 8 feet into the air by a rampaging bison in Yellowstone National Park is recalling the terrifying attack from his hospital bed. The incident left him with a shattered femur, and he is now recovering.

Zoe De La Paz, 26, quit her corporate engineering job in Chicago to pursue a career as a seamstress at Yellowstone National Park, turning her high-school hobby into a full-time profession.

Yellowstone National Park officials have decided against taking management action against a bison that tossed a grandfather eight feet into the air at a campground, an incident that required the victim, Carl Isom-McDaniel, to undergo surgery.

A massive bison attacked a tourist at Yellowstone National Park, an incident captured on video.

A 2.5-year GPS study in Yellowstone National Park has shown that ravens use mental maps of successful hunting zones to find food, rather than simply trailing wolves as previously thought, demonstrating remarkable intelligence.

New research is questioning the long-held belief that the reintroduction of wolves significantly saved Yellowstone National Park, challenging one of conservation's most celebrated success stories.

A biologist details the profound impact wolves have had on the ecosystem of Yellowstone National Park, specifically how their reintroduction led to significant changes in the river systems.

Yellowstone National Park, renowned for its geothermal activity, recently experienced a spectacular hydrothermal explosion, with footage showing a massive amount of muddy water and steam erupting towards the camera.

A study conducted in Yellowstone National Park in the United States finds that corvids return to the sites of previous feasts thanks to sophisticated strategies that had completely eluded researchers until now.

Researchers have identified a 79-million-gallon underground water reservoir located directly beneath Yellowstone National Park's famous Old Faithful geyser, offering new insights into the region's hydrothermal systems.

Thirty years after wolves were reintroduced to Yellowstone National Park, researchers observe stronger signs of recovery in aspen trees, adding to evidence that restoring top predators can reshape entire ecosystems.

Two tourists in Yellowstone National Park dangerously ventured off the designated path and walked on the fragile ground above the Grand Prismatic Spring, risking their lives as the ground could collapse into the superheated thermal feature.

A grandfather sustained a broken femur in four places after being gored by a bison in Yellowstone National Park.

A 26-year-old woman left her corporate engineering job to pursue her passion, becoming a seamstress at Yellowstone National Park for $19.25 per hour.

A bison that threw an elderly man more than two meters into the air in Yellowstone National Park will not be euthanized, following a viral video of the incident.

A bison in Yellowstone National Park charged and rammed a grandfather, knocking him several meters into the air, despite the man and his grandson appearing to be at a safe distance initially.

A bison charged campers at Yellowstone National Park, flipping a man several feet into the air. The terrifying incident was captured on video.

A hungry wolf attempted to steal food from a large grizzly bear feeding on a bison carcass in Yellowstone National Park but was quickly sent away by the bear.

Yellowstone National Park has reported another hydrothermal explosion, a natural geological event. These occurrences are part of the park's dynamic volcanic system, with the latest incident adding to recent activity.

Two hikers sustained injuries after being attacked by a bear on a trail within Yellowstone National Park.

A massive grizzly bear in Yellowstone National Park was ambushed by wolves while en route to a carcass, highlighting a dramatic wildlife interaction.

A new study from Yellowstone National Park reveals that ravens map the hunting grounds of wolves, once again demonstrating their astonishing memory. It was long believed that ravens merely followed wolves to benefit from their prey.

A visitor to Yellowstone National Park was treated for rabies two weeks after their visit, raising concerns about wildlife interactions in the park.

Video footage shows two tourists getting dangerously close to a resting bison in Yellowstone National Park, highlighting ongoing issues with visitor wildlife safety.

Newlywed Gretchen Pleuss from Wisconsin contracted cyclosporiasis while camping at Yellowstone National Park, resulting in her hospitalization and disrupting her honeymoon.

A tourist in Yellowstone National Park was attacked and thrown 2.5 meters into the air by a bison, an incident linked to the peak mating season.

A personal account details how sharing a hotel room with three generations for ten days during a visit to Yellowstone National Park, initially feared to be a nightmare, ultimately brought the family closer.

A grandfather was tossed 8 feet into the air by a bison in Yellowstone National Park, an incident captured on video. The survivor has since spoken about the attack, stating it could have been worse.

Tourists at Yellowstone National Park witnessed a dramatic clash between two 2,000-pound bull bison on a road during mating season, which temporarily halted traffic. The powerful display of dominance was captured on video.

Loud noises and thuds preceded the discovery of a fuming hole in the ground by researchers in Yellowstone National Park two days later, alarming experts.

An impressive photograph highlights the immense size of one of the world's largest hot springs, located in Yellowstone National Park, which attracts millions of visitors annually for its unique natural beauty.

Wolves in Yellowstone National Park are reportedly stealing kills from cougars, prompting the big cats to subtly alter their hunting strategies in response.

Morning quiz: Yellowstone National Park is primarily located in which US state?  NZ Herald