The Pittsburgh zoo has added one of the nation’s most iconic creatures, the American bison, to its sprawling Somerset County conservation center. Three female bison and a male “bull” – described as ...

Professor Dominick Spracklen told PA that the trees could take in and store 1m tonnes of carbon dioxide a year.“There is an ...

"Incredible and natural." Photographer shares unbelievable image of bison stampeding through crowd: 'Everyone ran and ...

The climate and early human societies were changing quickly during the fall of our closest evolutionary relative—and are big ...