hard life on the plains for the IP
the summers were hot and try-lack of water
winters were very cold-hypothermia, no insulation
plains were very dry with no surface water-lack of drinking water-dehydration
when it rained-torrential-flash flooding-destroyed camps
thunder+lightning=fires-cant put them out
needed to hunt the buffalo which migrated-may not have a lot of food->no buffalo->nomadic lifestyle(home not fixed)had belongings on a travois(made from buffalo ribs)