One of the most intelligent, loving, social creatures on earth, the wolf occupies an integral, necessary place in the ecosystem. Man's dislike of wolves has ancient roots, mostly due to its vying with man in the pursuit of big game. His haunting howls at night, aggressive predatory behavior in packs, ghostly presence and piercing eyes all contribute to the publics fear of and prejudice against the big bad wolf.  Along with so many other wild animals, man has killed, trapped and chased the wolf until they can only be found in the remote wilderness.  In the twilight glow of evening, a pack of wolves picks up the scent of an intruder to their territory. Is it a grizzly? A mountain lion? A lone wolf? The wolves have left their scent to mark the pack's territory, usually hundreds of square miles in area. This serves as a warning to any intruders that they are trespassing. In this scene, the pack has paused briefly to communicate to other pack members, through howling, the whereabouts of the stranger before bounding over the icy creek to pursue the intruder. - SL