Makes the animals fight for you.
Yeah, as Tommy pointed out Animal Allegiance makes the animals fight for you, Kyne's Peace calms them down. I like it for when I'm just trying to get from point A to point B without fighting every wolf, sabrecat and bear along the way. I'm not positive, but I think Kyne's Peace works on higher level animals better than AA. Plus, you don't have them following you around...