> For example it is uncontroversial that people with ancestry from Nigeria are better at sprinting, and people with ancestry from Kenya are better at long dista

> For example it is uncontroversial that people with ancestry from Nigeria are better at sprinting, and people with ancestry from Kenya are better at long distance running. World class sprinters have an over-representation of individuals descended from a specific region of Nigeria - you can't generalize that to "Nigerians sprint faster than Europeans",or "Black people sprint faster than white people" the way people do with IQ. It is also prudent to note that Kenya has a whole ecosystem nurturing long distance runners; with a wealth of scouts, academies, and trainers available to the young who show some talent, so ascribing Kenyan's prowess to nature alone is incorrect. Nutrition and IQ are correlated independent of race; especially early-childhood nutrition. Standardized testing is further compounded by test prep and tutors (proxy for wealth). Wealth in a family correlates to parents' education level. The lack of education in older African Americans has an obvious historical explanation. Most black Americans are descended from slaves from West Africa, but don't do as well as recent West African immigrants - 29% of Nigerian-Americans have advanced degrees; more than any other immigrant group. The vast chasm between the academic outcomes of two groups that are both largely of west African descent disproves "nature" is the sole determinant of poor outcomes for African Americans.