After 120 years of conservation efforts, Yellowstone bison are a single breeding population, researchers discover

Researchers from the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) have discovered that bison in Yellowstone National Park—the only group of American bison that has continually existed as wildlife in the United States—now consist of a single large, interbreeding population derived from multiple historic bison herds.