How did the environment of the Great Plains influence the cultures of the plains Indians?

They hunted buffalo, elk, and antelope and gathered wild berries. They made a travois by to poles tied together and a dog to pull it. They used the stomach of the buffalo to make water bags. Some of the many tribes are the Arapaho, Blackfeet, the Cheyenne, Arikara, Comanche, the Pawnee, Crow, the Osage, Manelan, Kiowa, the Sioux. They stole horses from enemy tribes and trained them. They mainly relied on the buffalo to make most items and clothing. Their bones were used for tools, their manure was used for making fires and there were many other things.