Same guys that do Walking Dead I thought. But do not know for sure. Give a woman some food, it will soon be gone, teach her how to hunt she will have food for a lifetime. Or something to that effect. :-)
I think they are trying to “Show us stuff” rather than being an accurate attempt to depict life under such a threat scenario. I think that is what trips viewers up because we play the scenario out in our heads and think “I would do X or Y” but the characters seem to do something stupid like “do option Z” because it is leading to something.