Board Thread:Speculation House/@comment-26025032-20151124005729/@comment-5217560-20151130003055

Maybe they have no originator, but were just born from the darkness of the world before Remnant. They have no souls, and they dissipate when killed. There's no evidence to support that they sexually reproduce. I think they're just formed out of the void. Sort of like the God being in Magi. When man came, bringing light, the creatures tried to snuff them out simply because man is what Grimm is not. Also Elephant, the Grimm don't feed off of negative energy, they're just attracted to it. Which may be because they are the embodiment of negativity.