Maybe not... Boskop man may have very well became Bushman.... A very telling warning of Humanity's future... If true then Boskop man's cranial; capacity shrunk to Bushman by as much as a 1/4th.
It seems Human intelligence came about by accident, probably in light of genetic drift, and some strange disaster.
However, it seems likely that Human intelligence is probably generally a recessive trait.
The fact that the cranial capacities shrank so much in Africa, the highest genetic diversity region, is very telling.
Seems unrelated to IQ.
Brain size and correlates with IQ
Another racist wetdream smashed by science.
Environment is more influential.
The first article is decent, the second one is bad.
Most studies show that the majority of intelligence is genetic, not a major majority, but a majority none the less.
This is not to deny environmental impacts.
No, so sorry but if the dumb idiots at the New York Times are to think environmental poverty is the sole cause of IQ differences, they themselves must have some kind of IQ malfunction.
There's no reason why Chinese in China score a higher IQ than not just Blacks, but also Whites in the U.S.A... The fact is China's income are very poor in comparison to those in the U.S, including Black incomes which tower above Chinese in China.