圣地亚哥一头北方白犀牛死亡 目前世界仅存五头
A northern white rhino has died at a zoo in San Diego, leaving only five such kind of species worldwide.
一头北方白犀牛近日死于圣地亚哥一座动物园中，致使全世界存活的该物种仅剩下五头。
Angalifu, 44, died of old age last Sunday at the San Diego Zoo Safari Park.
He was one of a handful of northern white rhinos left worldwide, including a few at a wildlife conservation area in Kenya.
There are no known northern white rhinos left in the wild.
Northern white rhinos and southern white rhinos are different subspecies genetically.
Last year, the International Union for Conservation of Nature declared the northern white rhino as "teetering on the brink of extinction."
Rhinos are killed by poachers almost exclusively for their horns, which sell for tens of thousands of dollars.