NEW variants of two genes that control the development of our brains have swept through much of the world’s population during the past several thousand years. In short, our brains are still evolving, and the implications of that are far from clear.
The evolution of a large complex brain has been the defining feature of the human lineage, although the size of our brain hasn’t changed over the past 200,000 years. We don’t yet know whether the new genetic adaptations discovered in our brains have any effect on brain size, or help to make us any more intelligent.
What’s…
