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Wow. You need to read some behavioral genetics. Let me know if you care to. I'll give you references. They've found g heritable in primates other than humans as

• light_hue_1 10y ago
  I've read quite a bit. I have a PhD in a broadly related field. I tried to explain that you're just confused about what heritability means in this context, what the relative effect sizes are of environmental factors vs parents, that these studies have crazy confounds, and the fact that these things aren't settled and are highly controversial in academic circles but clearly that's not working. I'll repeat something from my previous post because it's very important. When scientists talk about heritability they don't mean it the layman's sense of "these people have low IQ and that is conserved over time unless they go and breed with others". There's 0 evidence for this even if you look at a small and until recently fairly isolated population like that of Iceland. The correlation between your IQ and your cousin is almost non-existent even if you're part of the same cultural group in the same village. You're simply misinterpreting headlines without taking the time to understand what people mean. There's no "cultural taboo" here. Scientists want to find the truth and we all work very diligently at it. We're just lucky that reality doesn't back up racist and sexist viewpoints and that the scientific evidence is clearly not on your side.