This photo released by U.S. Fish and Wildlife Service shows a black rhino male and calf in Mkuze, South Africa.
This photo released by U.S. Fish and Wildlife Service shows a black rhino male and calf in Mkuze, South Africa. Karl Stromayer AP
This photo released by U.S. Fish and Wildlife Service shows a black rhino male and calf in Mkuze, South Africa. Karl Stromayer AP