The appropriate response is cultural values. Cultural values are the center standards and beliefs whereupon a whole group exists. This is comprised of a few sections: traditions, which are customs and ceremonies; values, which are convictions; and culture, which is the greater part of a gathering's directing esteems.
I am pretty confident that the shelters were made from wood and bones. However, I could be wrong, so try to find another source. I hope that my "answer" was useful!
