A Siberian tiger at the San Francisco Zoo leaps a 12-foot high wall and mauls three visitors who had been tormenting her, killing one. A circus elephant tramples and gores a sadistic trainer, who had repeatedly fed her lit cigarettes. A pair of orangutans at the San Diego Zoo steal a crowbar and screwdriver and break-out of their enclosure. An orca at Sea World snatches his trainer into the pool and holds her underwater until she drowns. What's going on here? Are these mere accidents? Simply cases of animals acting on instinct? That's what the zoos and animal theme parks would have you...