Health officials are working to alert hundreds of people in dozens of states and several countries who may have been exposed to rabies in bat-infested cabins in Wyoming's Grand Teton National Park ...

Health Officials in Wyoming are notifying hundreds of guests who stayed at the Jackson Lake Lodge in Grand Teton National ...

"Dust clouds. Deep bellows. Hooves stomping. Thunderous headbutts. It’s not a Kevin Costner series—it’s the annual bison rut.

On Saturday we showcased the extraordinary speed of North American pronghorn, with footage that showed the animals easily ...

A group of 19 people born around the world spent some of their first minutes as United States citizens on Friday morning engaged in a uniquely American affair.