A Ceratosaurus fossil that is one of only four known to exist has sold for $30.5 million at auction. The rare dinosaur fossil is “one of the finest and most complete examples of its kind ever found,” ...

The National Weather Service warns of possible severe storms Saturday afternoon in Cheyenne, bringing gusty winds and hail, ...

The U.S. House Committee on Natural Resources on Tuesday narrowly voted in favor of delisting the grizzly bear from the ...