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

The thing about the Creatures of Grimm seem to vary over the course of the seasons

Currently I am under the impression that the conflict between humans and these creatures is based on the old chinse philosophy, and so the Grimm are the Yang (pardon the pun) of this world. They feed off of the negative energy of humans and other races to live, but they seem to have existed before humans even arrived. If that is the case does that mean they were something else before? Or was there another species that was their source of consumption until they drove them to extinction, thus humans and the other races filled that gap. In other words Yang/Grimm consume the Yin/humans, which keeps that balance, but if Grimm consume too much that is where the huntsmen and huntresses come in to maintain that balance.

TO make it sort and dry....

If Grimm means that these creatures are a species then how did they evolve to consume the negative energy from this world specifically humans and other races?

If Grimm means that is the energy that they are organically based off of then does that mean they will eventually go extinct if humans and other races all killed by them? 