Talk:Crabsquid/@comment-68.146.242.19-20161129005052/@comment-28556298-20161129053944

Well, since the blast produces light, maybe it evolved as weird form of communication? When they see bright light, they respond with another blast of light. Then when they see the lights from a submarine, they get confused and respond. It also just so happens to be an EMP pulse that shuts down those submarines.

Or, it evolved as a way to keep those precursors from bothering them? Shut down their technology, then they can't probe you to see if you're infected??