It is evolution, and it speeds up with higher populations. As for natural selection, consider that only small changes in allele frequencies add up quickly thro

It is evolution, and it speeds up with higher populations. As for natural selection, consider that only small changes in allele frequencies add up quickly through the generations. Also, sexual selection is very much a force. http://www.scribd.com/doc/33322719/Cochran-Gregory-10-000-year-explosion-how-civilization-accelerated-human-evolution http://www.scribd.com/doc/33322719/Cochran-Gregory-10-000-ye... http://www.nytimes.com/2007/12/11/science/11gene.html http://www.nytimes.com/2007/12/11/science/11gene.html http://www.wired.com/wiredscience/2007/12/humans-evolving/ http://www.wired.com/wiredscience/2007/12/humans-evolving/