A man was among a large group of tourists in Yellowstone National Park that approached a bison too closely and wound up needing medical assistance.

Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

Onlookers at one of Yellowstone National Park's most popular sites watched a large bison take its final steps into a scalding hot spring and die in a horrifying reminder of what can happen away ...

Yellowstone Park has large parts of its landscape closed to human entry as part of Bear Management Units or for other reasons, like reducing disturbance of wolf dens or eagle nests.

Large herbivores, such as bison and elk, have lived continuously in Yellowstone National Park for more than two millennia, a new study has confirmed. Despite the near-extinction of bison in North ...

The giant supervolcano that lies under Yellowstone National Park is cooling off in the west but staying hot in the northeast.

Large herbivores like bison or elk have continuously lived in the Yellowstone National Park region for about 2,300 years, according to a new analysis of chemicals preserved in lake sediments.

This geological map of Yellowstone National Park was based on work by William Henry Holmes in 1878 as part of Ferdinand Vandeveer Hayden’s United States Geological and Geographical Survey of the ...

Video: Bison herd escorts calves across road in Yellowstone A bison herd filled with calves crossed US-212 in Yellowstone National Park, Wyoming, in late May 2023. Toby Tollefsen recorded this ...

A man was among a large group of tourists in Yellowstone National Park that approached a bison too closely and wound up needing medical assistance.