A trainer at Ocean Park was injured yesterday by a sea lion, the amusement park's mascot animal, just over a month after An An the giant panda bit his keeper. The 12-year-old female, Jumanji, grazed the trainer's left forearm with her teeth at about 1.30pm, while the trainer was talking to it and demonstrating feeding procedures at Pacific Pier, the park said. No audience was present. The trainer, an assistant marine mammal supervisor who has worked at the park since 1999, received two superficial scratch wounds. His name has not been revealed. Staff provided assistance and first aid to the trainer, who was taken to Queen Mary Hospital and later discharged. The park quarantined Jumanji for one week and notified the police and the Agriculture, Fisheries and Conservation Department, in accordance with standard procedure. So King-ma, a worker at Pacific Pier, said: 'This kind of incident doesn't usually happen. The sea lions are very well behaved.' Visitors to the park yesterday expressed surprise when they heard about the incident, but were unfazed. 'You don't know what an animal will do. I won't worry, but I'll tell my children to stay further back,' said Christine Chan, who has visited every year for three years with her husband and young sons. Huey Chan Wang-shun, her 10-year-old son, said news of the incident had scared him. 'They might bite other people here,' he said. Ocean Park chairman Allan Zeman said: 'This is the first time a sea lion has done this. We need to investigate. We're dealing with live wild animals. Sometimes they may be just playing. We don't know.' Mr Zeman also hoped the public's impression of Ocean Park's popular mascot, Whiskers, a waving sea lion, would not be hurt by the incident.