One of the most striking differences between humans and other primates is our large brain size. This difference is due in part to the fact that we have a much larger number of neurons in our brains than other primates. However, it is not just the number of neurons that matters. The way in which these neurons are connected is also important.
In recent years, scientists have discovered that there are a number of regions of the human genome that have been deleted in comparison to the genomes of other primates. These deletions have resulted in the loss of a number of genes that are involved in brain development.
It is possible that these deletions may have played a role in the evolution of human intelligence. By removing certain genes from the genome, it may have allowed for the development of new neural connections that are responsible for our unique cognitive abilities.
Of course, this is just one hypothesis. It is still not fully understood how humans evolved to have such large brains and complex cognitive abilities. However, the discovery of these deletions in the human genome is a promising lead that may help us to answer this question.
