"With the rising demand for rhino horn and ivory, we face many poaching attempts and while we manage to counter a large number of these, we often risk our lives in the line of duty," Simor Irungu, a ranger who guards Sudan and other rhinos at the conservancy, said in an interview with UK's World of Animals.
Sudan and three other rhinos came to the conservancy from a zoo in the Czech Republic in 2009, with the hope of breeding the rhinos in a climate and environment more natural to them. But by 2014, no baby rhinos had been born. The other male rhino, Suni, died at age 34 in October of last year, leaving Sudan and the two females left at the conservancy. Attempts to breed Sudan, the last male breeding rhino of the subspecies in the world, have been unsuccessful.