Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Michael Poland, geophysicist with the ...

A bison in Yellowstone National Park appeared to stumble into the scalding water of Grand Prismatic Spring, causing its death as tourists looked on during the park's busiest season. The bison fell ...

A bison died after it appeared to stumble into a hot spring at Yellowstone National Park last week while visitors looked on. The incident occurred during the early morning of June 21 at Grand ...

At 87º Celcius, the Grand Prismatic Spring is a beacon of microbial life and discovery. The Grand Prismatic Spring is the most recognizable thermal feature of Yellowstone National Park, but some of ...

A bison fell into the 160-degree Grand Prismatic Spring and died. An eyewitness tells us the ordeal was like seeing "the circle of life unfold.” The summer crowds at Yellowstone National Park were ...

Several people witnessed a bison’s final moments after it fell into a hot spring in Yellowstone National Park, photos and videos show. Screenshot of Katie Hirtzel's video in "Yellowstone Through The ...