I actually just finished reading Farley Mowat's "Never Cry Wolf". They made a film about it in the early eighties, which I haven't seen, but the book really affected me in a number of ways. Ways I'm not sure I know how to talk about.
I highly recommend this book to any and all. I've loved wolves since as far back as I can remember. Thankfully, they're back on the protected list in the US after being taken off in mid-march. 100 were killed in the time between, which in most states other than colorado and wyoming, would've wiped out an entire wolf population.