Editor’s Note: “Close Encounters: Tourists in the Wild” on The Whole Story with Anderson Cooper takes us to Yellowstone National Park, where visitors behaving badly can lead to dangerous encounters ...

Step into Białowieża Forest, one of Europe’s last and largest remaining primeval forests. This serene footage captures wild ...

Wild mammals on Earth are in big trouble. In the cold light of ecological arithmetic, they barely register anymore. Of all the mammalian biomass on the planet, just 4% is still wild. The rest — us and ...

For a decade, people who study Europe's bison population have been baffled by a genetic mystery. The animals, which are a , seemed to have appeared out of thin air about 11,000 years ago. "There's ...

(CNN) — A dangerous encounter with a territorial bison and the subsequent viral video were not what Rebecca Clark had in mind when she set out for Caprock Canyons State Park in early October 2022. She ...