Endangered black-footed ferrets soon will hunt prairie dogs at the Rocky Mountain Arsenal National Wildlife Refuge. The refuge was once deemed one of America's most toxic waste sites. Federal wildlife managers now say they're planning to release 30 captive-bred ferrets in September on the 27-square-mile refuge. According to the Denver Post, the ferrets and prairie dogs will still be blocked from a fenced, 1,000-acre area where contaminated materials are buried under a clay cap.
