The San Francisco Zoo’s only male gorilla, a 43-year-old silverback named Oscar Jonesy, died unexpectedly following a medical procedure on Thursday. The western lowland gorilla died while recovering ...
according to the San Francisco Zoo. He was the third-oldest male of his species living in a U.S. zoo. The average lifespan of Western lowland gorillas is 30 to 40 years in the wild. "We are ...