Many American schoolchildren grow up learning that Yellowstone was the world’s first national park. But across the globe in Mongolia, just south of the capital, Ulaanbaatar, a mountain holds a claim ...

Correspondent Conor Knighton reflects on the American treasure whose preservation as our first national park inspired similar conservation efforts around the globe.

The bear was euthanised by Yellowstone National Park staff around 5 p.m. on July 11, following "a series of concerning incidents." ...

On Monday afternoon, the U.S. Geological Survey announced the discovery of a new geothermal pool in Yellowstone National Park ...

With summer crowds pouring into Yellowstone, a number of the new visitors have been taken to task by the internet for being ...

Anecdotal evidence suggests bison might have specific behaviors associated with death and mourning. In one case in northern ...

A food-conditioned black bear was killed at Yellowstone National Park after a series of concerning incidents "posed a clear threat to visitor safety." ...