I ran across this article and thought others would be interested. I only copied a small portion, because of the copyright notice at the bottom of the article, so you will have to follow the link to read it all.
http://www.latimes.com/news/science/la-sci-evolution11dec11,0,5882337.story
The pace has been increasing since people started spreading through Europe, Asia and Africa 40,000 years ago.
The pace of human evolution has been increasing at a stunning rate since our ancestors began spreading through Europe, Asia and Africa 40,000 years ago, quickening to 100 times historical levels after agriculture became widespread, according to a study published today.
By examining more than 3 million variants of DNA in 269 people, researchers identified about 1,800 genes that have been widely adopted in relatively recent times because they offer some evolutionary benefit.
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