Here's something you might find educational -- nothing to do with intelligence, but genetic differences? Ever noticed the dominance of African contestants in Olympic running events? Gosh, could genetics have anything to do with that? Nah, you say.
"Black runners 'have speed genes'
Study of Kenyan athletes reignites controversy over race and sporting prowess
John Arlidge
Sat 25 Nov 2000 19.47 EST
It has been dismissed as racist and divisive, but scientists are confronting the greatest taboo in sport: that black athletes are 'genetically programmed' to run faster and longer than white athletes.
In the most comprehensive study of the biological differences between African and European athletes, Scandinavian researchers compared runners in Kenya and Denmark. Their findings confirm what observers have long suspected: that many Africans have greater stamina and speed than Europeans."
https://www.theguardian.com/world/2000/nov/26/johnarlidge.theobserver