Rare white rhino dies in US
![Graphic on the demise of the northern white rhinoceros, now down to only three individuals in captivity after a 41-year-old female died in a United States zoo. The northern white rhino on the brink of extinction](https://scx1.b-cdn.net/csz/news/800a/2015/thenorthernw.jpg)
A northern white rhinoceros—one of just four remaining worldwide—has died at the San Diego Zoo, officials said.
The 41-year-old female known as Nola saw her health take a quick turn for the worse.
"Early this morning, the team made the difficult decision to euthanize her," the zoo said in a statement.
The animal—battling an infection and other age-related ailments—had been at the zoo since 1989. It underwent surgery November 13 but then stopped eating shortly thereafter.
"Nola leaves a legacy that her keepers and animal care staff hope will continue to help rhino conservation for years to come," the zoo added.
The three remaining animals are at a conservatory in Kenya.
© 2015 AFP