Without this accomplishment, there is a chance the humans in the Americas would have died off.
Page 13, Question #3: Personally, I believe that the differences between Native American groups weren’t outweighed by the similarities. Although they did have many differences, there were even more similarities. Their adaption to their physical surroundings was one of the differences they had. The groups on the coast adapted by fishing for food and searching through forests, while the groups in the Southwest changed how their homes were built and began farming. Groups of Native Americans in the Eastern Woodlands lived in forests and used the trees and plants around them to survive. On the other hand, almost all Native American groups had strong traditions that were passed amongst generations, such as religious beliefs. Also, many Native American tribes traded language and goods along the trading networks that were established. Although each group was unlike all the others, they often shared similarities in language, religion, and social values. Therefore, although they had their differences, Native American groups were often very similar.