It is estimated that more than one thousand cultural groups exist in Papua New Guinea. Because of this diversity, many styles of cultural expression have emerged. Each group has created its own expressive forms in art, dance, weaponry, costumes, singing, music, architecture and much more. Most of these cultural groups have their own language. People typically live in villages that rely on subsistence farming. In some areas people hunt and collect wild plants (such as yam roots and karuka) to supplement their diets. Those who become skilled at hunting, farming and fishing earn a great deal of respect.