The Mexican wolf once roamed throughout vast portions of Arizona, New Mexico, Texas, and Mexico. But, as human settlement intensified across the Southwest in the early 1900s, wolves increasingly came into conflict with livestock operations and other human activities. Private, state, and federal extermination campaigns were raged against the wolf until, by the 1970’s, the Mexican wolf had been all ...but eliminated from the United States and Mexico.
In 1976, however, a new era dawned for the Mexican wolf. The Mexican wolf, a subspecies of gray wolf, was listed as endangered under the Endangered Species Act of 1973, a recognition that the subspecies was in danger of extinction. The wolf was already functionally extinct in the Southwest, and only occasional reports of wolves in Mexico confirmed its continued existence in the wild. It was now incumbent upon the Service, one of two federal agencies responsible for administration of the Endangered Species Act, to lead an effort to bring the Mexican wolf back from the brink of extinction in the United States.