In the face of steep population decline, the United States has moved to restrict the import of live African elephants and elephant hunting trophies. Strengthening the Endangered Species Act, the U.S.

Fresh dung. Tracks in the sand of the Namib desert. The black rhinoceros can't be far away. Wildlife rangers Stefanus Ganuseb, 42, and Fritz Hoeb, 45, are patrolling on foot, equipped with binoculars ...

These adaptations evolved over millennia. But colonial-era hunting, guns, farming and fencing nearly wiped out Namibia’s wildlife in the 20 century. Brown, an ecologist and environmental scientist, ...