Abstract The claim that differences in brain size across primate species has mainly been driven by the demands of sociality (the "social brain" hypothesis) is now widely accepted. Some of the evidence to support this comes from the fact that species that live in large social groups have larger brains. and in particular larger neocortices. Lindenfors and colleagues (BMC Biology 5:20) a... https://mypopes.shop/product-category/protector/