San Francisco Zoo in new animal escape alert: reports 1 hour ago SAN FRANCISCO (AFP) — A leopard and a polar bear came close to escaping from enclosures at San Francisco Zoo, reports said Friday, less than three weeks after a visitor was mauled to death by a tiger at the facility. The San Francisco Chronicle reported on its website that zookeepers told the paper a female polar bear climbed the wall of its enclosure on January 3 while a snow leopard chewed through a temporary enclosure on Thursday. The incidents come after the Christmas Day escape of a Siberian...