Nearly 400 of the last true, wild bison in America are being held in federal corrals in Montana, waiting for the government to decide if they should be slaughtered.

Their crime? The bison left Yellowstone National Park for lower elevations after harsh winter conditions buried their food supply under deep snow.

Ranchers and the Montana Department of Livestock are claiming that the bison will spread the disease brucellosis to their livestock, but no case of bison-to-cattle transmission of the disease has ever been documented.

It's up to federal officials to determine whether these 400 bison will live or die.

These animals should be allowed to roam free, not executed over exaggerated science.

Speak out for the bison of Yellowstone National Park. Urge U.S. Interior Secretary Ken Salazar to find an alternative to killing these animals that just left the Park in search of scarce food.