I wanted to point you to a video broadcast on the PBS program "Nature," called "Lobo: The Wolf That Changed America." The BBC originally did it, narrated by Richard Attenborough. The PBS version is narrated by F. Murray Abraham.
Hard to compete with. ;-)
This explains why "Wild Animals I Have Known" became such an important book, and to a point, why I recorded it.
Here's a link so you can find the full show and watch it on the PBS site. (http://www.pbs.org/wnet/nature/episodes/the-wolf-that-changed-america/video-full-episode/4414/)