ok because its a lot of information regarding evolution. i found a website that already has lots of information regarding it. please take a moment to look at it. it will give you a great idea of how evolution works. it will also help you understand what is a 8-14 and a 6-6 and all that other terminology.
http://rageofbahamutguide.blogspot.com/p/evolution.html
http://rageofbahamutguide.blogspot.com/p/evolution.html