The Utah prairie dog, extinct in more than 90 percent of its former range, is an endangered species protected by law. It now lives in a small area of southern Utah, between the ranges of Gunnison's prairie dog and the white-tailed...

Most of the black-footed ferret population in North America has been eradicated due to human activities and campaigns to remove prairie dogs from agricultural areas. A few protected colonies have survived in the United States. Some facts...