Just read a Quora post suggesting that the FOXP2 Gene is the one big thing differentiating humans from other apes.
Consulting Wikipedia it seems that this gene is certainly not unique to humans, and “other genes are necessary for human language development, and a 2018 analysis confirmed that there was no evidence of recent positive evolutionary selection of FOXP2 in humans.[”
OTOH, lack of the gene certainly seems to have a significant impact of speech development in individuals.
Meanwhile, I had never even heard of it.
So my questions are:
Why don’t we hear more of this gene?
How significant is it?