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topicnews · July 19, 2025

The wild animals do not hike out of the Yellowstone National Park, although the spread of misinformation on social media is spreading, says NPS, NPS says

The wild animals do not hike out of the Yellowstone National Park, although the spread of misinformation on social media is spreading, says NPS, NPS says


The National Park Service clears misunderstandings as to whether wild animals from the Yellowstone National Park hike.

Videos have spread on social media platforms, which apparently show a variety of animals such as herds of bison, moose, mountain lions and grizzly bears, left the oldest national park in the nation in large quantities.

In a video published on Tikk and Instagram, a group of grizzly bears seems to walk along a street and leave the reserve. Others show lines of bison and moose groups that do the same.

As a result, the topic tended to Google last week.

However, the NPS believe that the videos circulating on social media are with AI-generated and “satirical nature”, Linda Versess, spokeswoman for the NPS, told ABC News.

“The wildlife does not leave Yellowstone National Park in large numbers,” said Veress. “This rumor is wrong.”

A herd of Bison in the area of an old running fire in Yellowstone National Park in Wyoming, December 29, 2020.

Jon G. Fuller/VWPICS/Universal Images Group via Getty Images

While there are natural ebbes and rivers of wildlife hike in Yellowstone, most of the movement tends to occur in winter, Bill Hamilton, a wildlife biologist at Washington and Lee University, who has been investigating ecology in Yellowstone for 20 years, told ABC News.

In Yellowstone, hundreds of types of birds, fishing and mammals are housed according to the NPs. It is the only national park in North America where there is no fences that contain the animal world, and therefore they can go through freely, said Hamilton.

“They are free to come and go, and there is a migration path for moose and bison and deer,” said Tom Murphy, a wildlife photographer who has been taking pictures in Yellowstone for 50 years.

The animals leave the park in winter to get better access to food that are probably covered with snow in the park, said Hamilton. When the animals that eat plants and grasses go, the predators follow, he added. The mountain lions follow the deer and the wolves move with the moose.

The wildlife rarely moves out in summer, unless they are forced by an extreme event like a large running fire, said Hamilton.

This year is a “normal year” with typical weather and moisture, said Murphy. But moose and bison can look for a higher floor in search of cooler temperatures and fewer insects, said Murphy.

“There is no reason to go now,” said Murphy.

A grizzly bear can be seen in the Hayden Valley of Yellowstone National Park in Wyoming on July 5, 2025.

Kaylee Greenlee/Reuters

Some of the social media users set the hypothesis that the supposed migrations occurred due to a pending outbreak at Yellowstone's Supervulcano.

The complex and extensive volcanic system of the park is thoroughly monitored by the US Geological Survey and the Yellowstone Vulcano Observatory.

The current alarm level for volcanic activity at Yellowstone is “normal” or “code” according to USGS.

“Geologically, it will break out in the next 2 million years, but probably not today,” said Murphy.

While in the past a video of dozens of bison that are brought together, it is usually about 40 to about 4,500 in the park, said Hamilton. In winter it is easier for the animals to walk on the street as snow -capped soil, said Murphy.

“It was a very small percentage of the entire herd size,” said Hamilton. “These things are observed, but it's not a massive number of animals.”

A visitor looks at a bison on a street in the Hayden Valley of Yellowstone National Park, Wyoming, July 5, 2025.

Kaylee Greenlee/Reuters

It is immediately obvious that the video of the group of grizzly bears is fake because bears never get closer in this way, said Hamilton. Grizzly bears do not gather unless there is a “heavy, productive” food source such as a salmon stream in Alaska or a dead bison battle body in Yellowstone.

The video of the Mountain Lions is also “nonsense” because Berglöwen does not hike, said Murphy.

“You have a weekly round with a territory through which you travel, but you won't see you in a video where you walk along the street,” said Murphy.

While the misinformation may only be a form of entertainment, it can be in relation to the belief of people, said Hamilton.

“It undermines the general perception of understanding how things work, how nature works,” said Hamilton.