并列题名：Nature of the beast 并列题名：Nature of the beasts 并列题名：Battle of the beasts 并列题名：Maze of the beast 并列题名：Future of the brain 并列题名：Fable of the bees Nature of the beast 并列题名：Nature of the firm 并列题名：Anatomy of the bear 并列题名：Tumor of the breast