>>512710747
Humans having a larger brain is almost certainly because we cooked food.

Cooked meat could be chewed with weaker jaw muscles. And smaller jaw muscles meant the skull had more room for a larger brain. You can see this progression on the skulls of the hominid family tree.

I'm not sure what you mean by "our ancestors" eating raw meat. Primordial organisms certainly didn't have the means to cook food, and we descend from them. Do you mean that australopithecus ate raw meat? That's a retarded argument.