[atomack]

Here's an article citing research published this year that disputes the idea that our large brain was directly a result of access to extra protein from hunting meat:

"They concluded that the evidence for increased carnivory in our ancestors is merely an effect of increased sampling of the archaeological record at certain time intervals starting around two million years ago, meaning that there is no strong relationship between eating more meat and the evolution of larger brains in our ancestors."

https://www.smithsonianmag.com/smithsonian-institution/fourt...