Genesis 5-11

Today I read Genesis from chapters 5 to 11. While reading Chapter 8, I noticed that the dove was the animal that indicated that land was now dry. I wonder if this is why the dove is the symbol of hope. Probably it is, but then again it might date back to a myth from a civilization way earlier than when this section of the Bible was written. In Chapter 9 Verse 1 God tells Noah that it is up to him populate the Earth once again. This is the second time that it has been up to a very small group of people to create a huge group of people. No wonder it is said that we are all brothers and sisters. Finally, in Chapter 10 it starts talking on all of the descendants of Noah, which is what they did with Adam and Eve´s descendants. The Bible is becoming somehow repetitive.