When a 243-pound tiger escaped its pen and began mauling Christmas Day visitors, the San Francisco Zoo was painfully understaffed and ill-equipped to respond to the emergency, according to a new report. "The zoo is too often chasing problems," concluded the independent Association of Zoos and Aquariums of the attack, in which a 17-year-old visitor died and two friends were injured.
"It appeared that the zoo lacks enough supervisory personnel in the animal care department to effectively train, oversee, and enforce existing policies and procedures," said the report. The zoo says it has since addressed many of the concerns, reports the San Francisco Chronicle, including raising the tiger wall, improving staff training, and ensuring that zookeepers stay on duty until all visitors have left. (Read more San Francisco Zoo stories.)