World's oldest Diana monkey in captivity dies in Japan's Sapporo

The world's oldest Diana monkey in captivity named "Washington" has died at the age of 39 at a zoo in Sapporo on Japan's northernmost main island, officials said Saturday.The male primate, born on Aug. 26, 1982, at an Oklahoma zoo in the United States, had sired a total of 13 offspring, contributing to the preservation of the endangered species.The monkey was eating through Friday, but his death was confirmed the following day, according to Sapporo Maruyama Zoo, where he had lived since 1984.Washington is believed to have died of natural causes after he started losing his strength and eyesi…READ FULL ARTICLE