Ronaldinho- a good example of the benefits of genetic diversity 
. Maybe 50/50 black/white, or some other ethnicity as well?
Anyway- I dislike the way Wiggs think (although the word "think" is giving him too much credit) about race. He writes as though blacks are one group. Africa is a continent- a rather large one too. Northern africans are very different from southern/western/eastern africans. Different african ethnicities excel at different sports. Western africans are the best sprinters. Northern and eastern africans are long- or mid-distance runners etc. By not differentiating, he actually contributes to oversimplifications and primitive racial stereotyping.
NN
In America Ronaldinho is black. He would get treated like a black man in America and seen as one in pretty much every part of the world. In Latin America, due to his complexion/skin tone, he would be seen as more favorable, less Negro (look at what Sammy Sosa did to himself).
In a sense, Wiggs is correct. In some aspects black people are thought of in a monolithic sense.
And even East Africans (Ethiopians, etc) have been known to make fun of their Western African brethren due to the differences in facial features (Some Ethiopian ethnicities with their sharper noses compared to wider noses of West Africans). What you said has been widely known. Genetic diversity and adaptations to environments.
