For video, please follow this link: http://e360.yale.edu/feature/pronghorn_herd_faces_obstacles_from_natural_gas_boom_in_rocky_mountain_west/2259/

A natural gas drilling site erected in the middle of the pronghorn’s 6,000-year-old migration path from Wyoming to their winter home illustrates how free-for-all oil drilling can harm both an entire species and the air quality of a small Midwestern [...]