Talk:Grimm/@comment-58.7.82.142-20140314104850/@comment-3146930-20140315185945

Just to add a little here. In the opening episode, it is said that humans had just started forming, but from the time Grimm began to attack them and almost drove them to extinction. If the Grimm really were fighting just to defend themselves, then eventually it would serve no purpose to attack the humans any longer. Not to mention that until humans discovered Dust, they weren't any kind of threat so obviously the Grimm were attacking them either because they wanted an easy meal or because they have an impulse to attack them.

It is possible that Grimm, being soulless creatures are attracted to those with a soul. This is just an idea I just formed, but Pyrrha mentions that everything alive has a soul and Aura, but the Grimm do not. It is entirely possible that Grimm are able to sense Aura and a drawn to it, causing them to react violently. They can't resist this urge and will make anything with an Aura like them; basically making those with a soul soulless by killing any living thing. This could explain the lack of animals in the forest or any forest visited so far.

The reason for this is unexplained, but I still believe that Grimm are created by some kind of dormant Grimm that was one of the first creates born on the planet, but lacked a soul and hated those that did; thus creating its own race to extinguish those with a soul. It was then defeated in the original war and now sleeps, but it still creating and influencing Grimm.