Black-tailed prairie dogs live in harmony with bison on the plains of South Dakota, but the same cannot be said for the prairie dogs' relationships with some humans in the area. To many ranchers, the dogs are seen as vermin and a threat to the grass supply for their grazing cattle.
Text adapted from "The Vanishing Prairie Dog," April 1998, National Geographic magazine
(Photograph shot on assignment for, but not published in, "The Vanishing Prairie Dog," April 1998, National Geographic magazine)