According to or textbook the theory of how North America was settled was for food and the chasing of herd animals for substance. Herd animals was used for food, tools and clothing. I am not sure if at this time, animals were being used for heat but we know they were used for shelter and other resources. But as the people expanded into other lands they discovered other food sources and expanded their knowledge on how to survive in the new lands. Some believe that the first people came from Asia, but the discovery of the Kennewick man shows some discrepancy in this theory. It is really hard to say who the first person was that discovered or settled North America. One reason I say this is that how long did we think that people from Asia was the