Dung beetles roll a ball of bison dung along a road in the Tallgrass Prairie National Preserve located in the Flint Hills of Kansas near the towns of Strong City and Cottonwood Falls. Dung beetles feed on manure, using it provide housing and food for their offspring and for prairie and pasture nutrient recycling. A male and a female beetle will work in a pair to roll a ball of dung away from a manure pile. They then will bury the ball as a home for their young. Drawn to manure by odor, a beetle will fly up to 10 miles in search of the right manure. Studies have also shown that dung beetles use the Milky Way as a directional bearing to navigate. Tallgrass Prairie National Preserve is the only unit of the National Park Service dedicated to the preservation of the tallgrass prairie ecosystem. The Tallgrass Prairie National Preserve is co-managed with The Nature Conservancy.