To graze or not to graze, that is the question. For years, an ongoing dispute has taken place as to whether livestock grazing is harmful to the environment. Now comes a study stampeding out of the University of Utah which seems to answer this rangeland question. The researchers examined 16 enclosure sites which have been perfectly preserved from 1934 without any sheep or cattle grazing and compared them to surrounding lands which have been disturbed. The results indicate that not only are the grazed lands not damaged, but that munching livestock actually helps the ecology by increasing plant variety, reducing invasive species like cheatgrass, and lessening the prospects for dangerous wildfires.