The Karankawa Indians were known to move for the availability of food.  The Karankawa Indians relied on food and their shelter.  The Karankawa homes were called ba-ak.  A Karankawa home was a small hut because it was just a temporary hut, you see they traveled and resettled often.  The huts were made from long sapling tree trunks or limbs bent over and tied together.  They would stick one end of the tree limb or saplings into the ground in a big circle.  Then they would bend them over towards the middle and tie them together making a framework.  They then would cover the framework with woven grass mats, palm leaves or with animal skins.  Then they covered the floor in woven grass mats.  They built new huts every time they moved to new settlements.