A professional photographer happened to be on of the motorists that was able to witness the hunt of an Elk cow on an overpass in Canada's Banff National Park. Here is a link to the article with a photo slideshow. Beware that it is Wolves doing what they are intended to do and if this is offensive to you, don't go to the article. The photographer was amazed at how smart the Wolves were while the author of the article calls it a gruesome scene. I suppose no more gruesome than a slaughter house.