Could our big brains come from Neanderthals?

[Bullitt]

Originally Posted by yesman065

Very interesting - I really like the CYA part towards the end -
"The D alleles may not even change brain size; they may only make the brain a bit more efficient if it indeed affects brain function," Lahn said.

That plus
"By no means do these findings constitute definitive proof that a Neanderthal was the source of the original copy of the D allele..."