World’s last male northern white rhino passes away: The last male northern white rhinoceros, Sudan, passed away on Monday at age 45, the OI Pejeta Conservancy announced yesterday. The rhino had been suffering from several age-related health complications, which led veterinarians at the conservancy to euthanize him. Sudan’s species is dangerously close to extinction as there remain only two females in the world, but scientists managed to collect Sudan’s genetic material in hopes of artificially inseminating the females to prevent their extinction. Rhinos are often poached for their horns, which some believe can be used to treat illnesses and others display as a symbol of wealth.