"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike ...

However, this was not a video of Yellowstone mountain lions migrating south to Utah. There was no evidence that the park's ...

Why are the animals leaving Yellowstone National Park? Videos featuring mountain lions, bears and more go viral after the ...

Christmas came early for geologists at Yellowstone National Park this April when a regularly scheduled survey resulted in finding a new thermal feature at one of the most famous national parks.

Learn about the new hydrothermal feature that appeared last winter in Yellowstone National Park, possibly on Christmas Day.

Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

Get ready for a little Christmas in July: There’s a new baby blue pool in Yellowstone National Park, and science suggests it started forming on the winter holiday.

View looking northwest at a new thermal pool in the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, that probably formed in a series of mildly explosive events between late ...