This scene shows the time in human evolution called the stone age, the stage where people thought that there only source of food and survival was hunting and gathering. This started hunter-gatherers. They had non-permanent homes such as tents, and caves. They would stay in these homes for a few days up to a few weeks. This made them nomads.
This second scene shows the time in human evolution, where people found a new source of food and lifestyle. They discovered agriculture. Agriculture is when people found out that they didn't have to hunt or gather food anymore. They could farm. They could finally have permanent homes like houses and cabins. This occured near the end of the stone age.
The final scene shows the time in human evolution, where people got the hang of there new lifestyles and started to form new communitys. This lead to people having to do less work and finding different talents and interests. New towns star