Speech Gene Shows Its Bossy Nature, New York Times 12/11/2009
Of the 20,000 genes in the human genome, few are more fascinating than FOXP2, a gene that underlies the faculty of human speech.
All animals have an FOXP2 gene, but the human version’s product differs at just 2 of its 740 units from that of chimpanzees, suggesting that this tiny evolutionary fix may hold the key to why people can speak and chimps cannot.
FOXP2 came to light in a large London family, half of whose members have severe problems in articulating and understanding speech. All turned out to have a mutation that disrupted this vital gene.
