Wow, I actually didn't know that with 4 pieces in one square. That's why I never got the Markhors to work :) And with the snow leopards it might have been luck. So thanks for opening my eyes! That might obliterate the problems I had with some of your other animals (Kiangs I think for example).
Edit to add: And with the Kiangs, that bugged me because I love Kiangs in real life. The most beautiful donkeys out there I think! But now I just might get them to work :)