Due to unregulated hunting and poaching, the black rhinoceros has become an endangered species across the African continent. In an effort to preserve the remaining rhinos and repopulate the species, wildlife preserves have been created. The black rhinoceros now thrives in the South African National Park system. In order to spread the success of the South African preserve to other regions, rhinos from this sanctuary are being relocated to other preserves across the continent. In this video from Nature, learn about the factors taken into consideration to release the Black Rhino back into the wild.