IQ of local populations, pre-migration

Here's something the PC police doesn't want you to know...

Click images for their Wikipedia articles. This type of research is highly controversial within academia, but we know truth is often politically incorrect.

Why are more Asians math whizzes while more Africans play basketball?

Hint: it's not arbitrary. Evolution really does happen within regions—be it of the biological (genes) or social darwinian (culture) kind.