My first raptor encounter was quite interesting. I was about level 12, and I've never seen a raptor before. I was doing my own things, when 3 raptors came to me out of nowhere. I got knocked of a cliff, but instead of dying, I landed on a rock. I tried to get off it, but I fell and died. The raptors were gone, and I built a base at the point where I died. Now I have a full army of them and I always try to tame one when I see them.