The Utah Environmental Congress is presenting the documentary film Lords of Nature:  Life in a Land of Great Predators on Wednesday, June 23, 7:00 pm at the Sprague Public Library, 2131 South 1100 East in Salt Lake City, UT. The film explores the role of top predators such as cougars and wolves in keeping natural ecosystems in balance. Following the film, a panel will discuss the status of predators in Utah and the return of wolves to Utah. The film is free and open to the public. For more information, contact the Utah Environmental Congress at 801-466-4055.