Centuries ago, herds of bison roamed the Great Plains, numbering in the tens of millions. One of the most populous mammal species in North America, enormous herds of the animals grazed and migrated ...

Wyoming’s wild bison are the first of the ungulates (hooved animals) to kick off the fall breeding season, or rut. For bison, the rut starts in July, but really gets going in August and carries into ...

A bison calf born in June in New York’s Bronx Zoo — the first genetically pure bison calf ever produced by embryo transfer — has Yellowstone genes. The zoo waited until Thursday to announce the calf’s ...

Whether you are going to be using artificial insemination or turning out bulls for natural service, planning plays an ...