Researchers announced today (March 20th) that the world's last male northern white rhino had died, euthanized Monday at age 45 because of age-related complications. That leaves behind two females as the only remaining members of the subspecies.
The rhino, named Sudan, had been at the Ol Pejeta Conservancy in Kenya, where he'd been part of an effort to save northern white rhinos from extinction with the help of the two females, one of which was his daughter, and the other her daughter.
The conservancy said that the only hope now for preserving the subspecies, which was decimated by decades of poaching, is to develop in vitro fertilization techniques using eggs from the two remaining females, stored semen from now-dead northern white rhino males, and surrogate southern white rhino females.
It is with great sadness that Ol Pejeta Conservancy and the Dvůr Králové Zoo announce that Sudan, the world’s last male northern white rhino, age 45, died at Ol Pejeta Conservancy in Kenya on March 19th, 2018 (yesterday). #SudanForever #TheLoneBachelorGone #Only2Left pic.twitter.com/1ncvmjZTy1— Ol Pejeta (@OlPejeta) March 20, 2018