Sudan, the last male northern white rhino, has passed away at the age of 45. He had been the last hope for his subspecies to avoid extinction. Sudan was surrounded by those who had loved and protected him when he died at the Ol Pejeta Conservancy in Kenya. Despite efforts to save the northern white rhino, Sudan and the female rhinos were unsuccessful in producing offspring. Conservationists are now trying a unique approach with in-vitro fertilization and surrogate mothers. Sudan's passing highlights the human impact on wildlife and the need for conservation efforts.