Ranchers' fear of brucellosis continuing to impede full recovery of bison population in areas around Yellowstone NP

Once staring into the oblivion that is extinction, bison have rebounded in number and prestige to be called the United States’ national mammal. Yet those in Yellowstone National Park don’t fully carry the prestige that distinction bestows.

Though believed to have descended from pocket herds in the upper headwaters of the Yellowstone River that escaped the great slaughter of the late 19th century that veritably annihilated the species, and prized for their unsullied genetics, half or more of the park’s bison carry a cattle-introduced disease that, frankly, scares the hell out of ranchers.

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