Only Four Northern White Rhino Are Left In The World – Can Technology Save The Species From Extinction? Only four northern white rhinos are alive today. The San Diego Zoo and other researches are upping their game, devoting more finances and more aggressive efforts to recover the dying species. by Charity Johnson
Science Rare Northern White Rhino on Threshold of Extinction: Angalifu Dies in San Diego Zoo by Rhodi Lee
Culture Northern White Rhino Dies at San Diego Safari Park. What to Know About These Endangered Creatures by Jan Dizon