13th Annual Smithsonian Magazine Photo Contest Natural World

A bison stands in a cloud of dust after wallowing in the dirt in order to rid itself of molted fur and to deter pesky flies. Dozens of prairie dogs can also be seen in the grass.

Photo Detail
Date Taken: 07.2015
Date Uploaded: 08.2015
Photo Location: Badlands National Park, South Dakota, United States of America
Copyright: © Erik Fremstad