Originally posted by ilikecomics
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270739/"The heritability of intelligence increases from about 20% in infancy to perhaps 80% in later adulthood. (ii) Intelligence captures genetic effects on diverse cognitive and learning abilities, which correlate phenotypically about 0.30 on average but correlate genetically about 0.60 or higher."
Here it is again, for ya, bud.
Later studies by Robert Plomin state
_genome-wide association studies have successfully identified inherited genome sequence differences that account for 20% of the 50% heritability of intelligence._