And yet we have people speculating it was a "lost child, searching for its mom" anyway. People want to know about the monster, this thread is proof of that.
This isn't just "Whaaa! I need everything spelled out for me." It's because the monster is a lot more interesting than Rob and that chick he fucked one time. And this isn't a movie about the monster, it's a movie about a bunch of poorly developed, badly acted assholes I could give a fuck about.
I'm not saying this needed to use the worst of the cold war-era B-movie cliches, but the basic arc of a monster movie tells the story of the monster and his struggle with humanity (be that monster good, evil, or neither).

