Board Thread:General Discussion/@comment-26955524-20161126192429/@comment-28522425-20170226223729

There are things we still don't know, obviously.

About the Grimm attacking Humans, I think someone theorized that they were attracted by the Darkness (negative emotions) inside them, but kill them because of the Light inside them. As for why they only attack Humans, chances are that Salem or something else is making them have Humans as their top and only priority. Or maybe someone used the Choice Relic on them, I don't know.

I did get the impression that Qrow was keeping things from RNJR, or maybe Ozpin was keeping things from him, for whatever reason.