Our communities in the Paleolithic age was not very strong because we had many people out hunting and searching for berries so there was no permanent spot for our community to stay. If someone got sick we had to leave them behind because we had to stay on the move.
One very important change within our community is we can divide the work up and then we can accomplish a task easier.
We can defend ourselfs better when we have a large community. We have better tools and more people to defend.
This topic is important, because having a large community can help us create and invent better tools and accomplish task more easier.