Wolves have what it takes to live in peace. They communicate lavishly. By gestures -- the smile, for instance -- and by sounds, from the big social howls to the conversational whimpers. They even seek to control by sound first, not biting. A full-grown wolf will plead with you not to take its possessions. And you in turn can plead with a wolf. It glances at your eyes, desists from what has displeased you and walks off as if indifferent.