Homo sapiens made structures that resembled tents for shelter. They were made of big branches, and were wrapped with animal hides. They also made tents with bone structures inside the hide. These bones were usually mammoth bones. Neandertals also built their tents inside caves to provide warmth and even more shelter. Neandertals were mostly nomads. They traveled, and did not have one stationary place to live. Because of this, they usually built their bone or wood structures when they got to a new location and only carried the hides in case there was no game to hunt at their next camp site. Many of the bone structures that have been carbon dated back to Neandertal times look like they were stripped of the hides that surrounded them which preserved the bones.