Human genes are inserted into monkey brains and expand neocortex

Scientists have inserted a human gene in the brains of monkeys to make them larger and more wrinkled in disconcerting lab experiments.  Experts found the insertion of the gene, called ARHGAP11B, resulted in a larger neocortex in the foetus of a common marmoset.  The neocortex is the deeply grooved outer layer of the brain that is … Read more