I'm not sure anyone but me is interested in the information but here is a great article showing genetic regression or mutation as it relates to humans and the required number of offspring to maintain genetic integrity over time, much less improve the gene pool. At least I found it very interesting. We used to be a better species folks.
http://www.creationdigest.com/archives/Archive_2002_Autumn/MonkeyMan_Hypothesis.htm
http://www.creationdigest.com/archives/Archive_2002_Autumn/MonkeyMan_Hypothesis.htm