1are born from smaller groups who form much larger ones; 
2go through a child stage in which they want to explore and learn about others; 
3enter into those teenage years where they begin establishing who they are in relation to everyone else; 
4become young adults, making it on their own; 
5expand their possessions as the family grows; 
6experience the golden years at the peak of their life; and finally 
7enter the phase where they grow old and die.