For decades, biologists have known that grizzly bears climb Greater Yellowstone’s highest mountains to gorge on one of the bears’ more surprising food sources: the army cutworm moth. Now researchers ...

A herd of bison gorged on fresh green grass while roaming the town of Mammoth, Wyoming, on the northwest edge of Yellowstone National Park, on Tuesday, April 29. Video from local resident Cindy ...

Scientists have discovered vast reserves of "zero-emission" helium in Yellowstone that could help with the global scarcity of ...

The east entrance of Yellowstone National Park is set to open this Friday, weather permitting. Park officials emphasized the importance of weather conditions, noting that spring ...

Fuller had been to Yellowstone once as a kid, and he remembered it as overcrowded and full of road construction. But a road ...

Jane Lavino first made her way to Wyoming in the 1980s for a summer job as a cook in Yellowstone National Park.

The animal was found walking down a street and was taken to a pet shop, Little Beasties, where staff helped to find the owner ...