How did early humans use art to express their prehistoric culture?

Early humans did not know how to write so they drew. 
They drew to communicate,to tell story's and to learn.

how do they communicate by drawing?
well they draw it out jest like acting it out. 

If they wanted to tell there mom that they sow a monster they wold 
draw them selfs looking at a monster. 

They tell story's the same way. It's jest like a movie on a wall. 
How did they learn from art? 

Well they learned what can happen to them and what happened to 
others.