Shred
The aliens that took over Noloc are called Shred. They are vicious creatures with razor sharp claws. They can only survive cold conditions so they cannot go within the four States as the equator is too hot for them. They surround the outskirts of the states and wait for unlucky elements to wander astray into their arms. Their saliva is very poisonous and will paralyse you if bitten. Best thing to do is to stay away from them.