@StarJo - I imagine that part of the reason for living in big, multi-family homes was for the extra warmth of all that body heat. It’s likely that they huddled together inside on snowy nights to survive the dipping temperatures.
These Indians were resourceful with the design of their property. The palisades around the homes could have served more than one purpose. They could have acted as a barrier to outsiders, but they also could have served as weapons. All one would have had to do was yank up a sharpened log from the ground and hurl it at an intruder.