A bear in central China has bitten off the arm of a 9-year-old boy who tried to feed it through its cage, state media and a doctor said today. The attack happened yesterday afternoon at Pingdingshan Hebin Park in Henan province, which has a zoo inside. The boy managed to push his arm through the bear's cage to feed it when the bear bit him. A doctor at the Pingdingshan Number 152 Hospital, who treated the boy, said today that he lost his entire right arm, which had to be amputated. (More animal attack stories.)