A northern white rhino has died. There are now five left in the entire world.

Angalifu was 44 when he died of old age on Sunday at the San Diego Zoo Safari Park, Calif. He was a northern white rhinoceros, a species on the brink of extinction. Following his death, there are just five northern white rhinos left worldwide, all in captivity.

http://www.washingtonpost.com/news/speaking-of-science/wp/2014/12/15/a-northern-white-rhino-has-died-there-are-now-five-left-in-the-entire-world/