FILE In this Monday Dec. 21, 2009 file photo, Sudan, a northern white rhino, arrives at the Ol Pejeta Conservancy in Kenya. There’s just one male northern white rhino left in the world, and he’s getting some help from the Tinder dating app. A Kenyan wildlife conservancy is teaming up with Tinder for a campaign called “The Most Eligible Bachelor in the World,” focusing on the rhino named Sudan. They are raising money for research to save the species from extinction. Sudan and his last two female companions are unable to breed naturally because of issues that include old age. (AP Photo/Riccardo Gangale, File)