Board Thread:Speculation House/@comment-71.17.68.254-20130907025506/@comment-184.157.31.215-20140303181648

There exist to me, two options, they (the Grimm) are a hive mind, which would justify their actions in Episode 8 (the scorpian and the raven/hawk), or they have more of a wolfpack mentality (or if you prefer the term "zerg rush" mentality). There is a third option, but I find it a little less than hope, the Grimm act on natural instinct, like a bird flying away when you fail to shoot it, only they serve as a human's nature preditor whose population exploded.