The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National ...

The same person was the source of rumors that bears and mountain lions were leaving the national park in mid-2025.

Animals from a variety of species were seen leaving the park in herds, causing fear of an eruption, but were noted as ...

A National Park Service spokesperson said animals are not leaving Yellowstone in large numbers, and a volcanic eruption is ...

"Wildlife is not leaving Yellowstone National Park in large numbers," Linda Veress, spokesperson for the National Park ...

In 2008, a group of pronghorn passing a small town in Wyoming clambered through a hole in a fence alongside a busy highway, continuing an annual migration across the Greater Yellowstone Ecosystem ...

Great Migrations: Keeping Yellowstone’s Lifeblood Flowing. Migrating elk, pronghorn, and other wildlife help ensure a healthy ecosystem, but development could threaten their ancient routes.

When budding wildlife photographer Joe Riis first told biologist Hall Sawyer about his plans to photograph the newly discovered longest pronghorn migration in the world, Sawyer was, well, unsure.

The National Parks Conservation Association’s wildlife connectivity program, celebrating its 15th year, is helping the herd make a comeback. After the Yellowstone Park pronghorn herd hit a low of 190 ...

Much of the current research on migration taking place in Wyoming stems, at least in part, from the work of Hall Sawyer, who grew up hunting and fishing in the state and has studied its wildlife ...