Final answer:
The Lakota Sioux, a prominent tribe within the great Sioux nation, lived a nomadic hunter-gatherer lifestyle in the Great Plains, significantly influenced by the reintroduction of the horse for bison hunting.
Step-by-step explanation:
One Native American tribe that lived in the Great Plains region of North America was the Lakota Sioux. This tribe, along with others such as the Dakota and Nakota, made up the great Sioux nation and were known for their nomadic hunter-gatherer lifestyle, primarily hunting bison.
The reintroduction of the horse after European contact profoundly transformed the lives of these tribes, allowing them to follow and hunt the great bison herds more effectively.
The Sioux were particularly important in the northern Plains region, while other notable tribes included the Crow, Cheyenne, Pawnee, Arapaho, and Comanche in other parts of the Great Plains.