St. Louis Zoo helps oryx species come back from near-extinction

The status of one species has gone from "extinct in the wild" to "endangered," thanks in part to the efforts of the St. Louis Zoo. The scimitar-horned oryx, a member of the antelope family, had stopped existing in its native habitat as of 1991, according to the International Union for the Conservation of Nature. At the time, they only remained in zoos.