"There are kids there!" National parkgoer sparks outrage with video of tourists' dangerous behavior: 'That's so sad' first ...

A group of Yellowstone visitors have been criticized online after taking photos of a bear well within the recommended distance.

The animals were slowly killed by ash falling from the Yellowstone supervolcano, but it preserved their bodies and has ...

Researchers are looking into if the resident Yellowstone bison are actually one herd, not multiple. Scientists always ...

Entombed at the Ashfall Fossil Beds State Historical Park, teeth from the rhino fossils were analyzed by researchers at the ...