Board Thread:Speculation House/@comment-71.17.68.254-20130907025506/@comment-3146930-20130912020513

There is something else I noticed. So Grimm are formed in possibly one of three ways:
 * 1) They take control of native animals and mutate them over time.
 * 2) They breed and make more Grimm.
 * 3) (Maybe) There is some kind of intelligent design going on, with Grimm being born from a single intelligent source Grimm.

However looking at option #1, you have to wonder why it is that we haven't seen any human Grimm. I mean maybe Adam is one, but his mask seems more like just a mask he wears as it has holes in it he can look through. The other Grimm either have no eyes or their eyes are part of the mask. Maybe we just haven't seen it yet or maybe Grimm just don't like us.