This series about the University of Nevada-Reno's unethical treatment of their research animals came after five months of extensive investigation by the Reno Gazette-Journal. One university professor is under fire for filing complaints with the USDA about the neglect of animals used to help find new treatments for various diseases. One of the allegations looks at how the university has been disposing of animal carcasses (or parts) in their farm property just a few hundred yards from a Hidden Valley, a residental subdivision. Animal carcasses are left in the open air for coyotes, increasing coyote problems in the area. Other allegations include the unnecessary deaths of 38 pregnant ewes because they were not given food or water, research pigs housed with minimal water or space, and lack of regulations and quality controls for the university.