Posted: Mar 26, 2010 8:09 pm
by Warren Dew
With respect to FOXP2, it's to be noted that the human version of FOXP2 is shared with neanderthals:

http://www.ncbi.nlm.nih.gov/pubmed/17949978

This strongly indicates that whatever caused the changes in our FOXP2 gene relative to the chimpanzee version occurred before the branch between humans and neandertals.