In Photos: Remembering the last male northern white rhino Sudan

Sudan, the world's last male northern white rhinoceros, died in Kenya on Monday, leaving his species one step closer to extinction.

James Mwenda is one of the six dedicated caregivers who took care of Sudan on a daily basis. Most of them have been with Sudan since he arrived on Ol Pejeta in 2009 and to them he is like family. (Facebook/ Ol Pejeta Conservancy)

Sudan was being treated for age-related complications that led to degenerative changes in muscles and bones combined with extensive skin wounds. His condition had worsened significantly and the veterinary team from the Dvůr Králové Zoo, Ol Pejeta and Kenya Wildlife Service made the decision to euthanize him. (Facebook/ Ol Pejeta Conservancy)

Fatu, centre, and Najin, left, the only two female northern white rhinos left in the world, graze where they are kept for observation, at the Ol Pejeta Conservancy in Laikipia county in Kenya. (Photo: AP)

Sudan was captured in Sudan in 1975, when he was just 2 years old, and was taken to Dvůr Králové Zoo in the Czech Republic. (Photo: AP)

Sudan was relocated in 2009 to the Ol Pejeta Conservancy, in Laikipia County, Kenya, along with two northern white rhino females named Najin and Fatu. (Photo: AP)

Joseph Thaida, who took care of Sudan at the conservancy since 2012, remembers him as an affectionate and gentle rhino who had his picture taken with tourists and served as the centerpiece of publicity stunts. (Photo: AP)

Sudan got his own Tinder profile last year to bring attention to the plight of his subspecies and to direct donations to the Ol Pejeta Conservancy for research on assisted reproductive technologies for rhinos. (Photo: AP)