Alberta, a 32-year-old western gorilla, one of the marquee animals at the park, has died, zoo officials announced Friday.
While Alberta had some medical problems of late, her death was a surprise.
Born at the Fresno Chaffee Zoo, Alberta came to the park -- nee the Wild Animal Park -- when she was but a few months old.
She and her mate, Winston, had three offspring. Ndjole, a male, is on loan to the zoo in Oklahoma City.
--Tony Perry in San Diego
Photo: Alberta. Credit: San Diego Zoo