After reading American Wolf: A True Story of Survival and Obsession in the West, I had to see images of "0-6". Yours are stunning! I have been to Yellowstone several times photographing in the Lamar Valley and had the privilege this year of seeing the Wapiti pack on a bison kill. It was incredible to watch these magnificent animals. Thank you so much for your photos! I have them bookmarked and will look at them frequently.