The inclusion of meat in the human diet was a key evolutionary factor that allowed for the growth of our brains and the development of the neocortex.

“what we know pretty clearly is that the human brain really rapidly exploded in size right about the time that we started eating meat there's evidence for hunting evidence for stone tools it all correlates with when the human brain began to rapidly increase in size eating meat made us human”

“the human brain and i talk about the human brain in the book at that point and i talk about how it's gotten very big very quickly over the last 2 million years primarily as a result of humans eating meat and hunting”

“i think that it's very clear that or at least you can make an extremely strong case that the inclusion of meat in the human diet made us human was integral to the growth of the human brain”

“And the inclusion of meat in our diet as humans in history was probably one of the key elements that actually allowed our brains to grow and for us to develop a a rich neocortex and to be the functioning humans we are today.”

“And then the inclusion of meat in our diet as humans in history was probably one of the key elements that actually allowed our brains to grow and for us to develop a a rich neocortex and to be the functioning humans we are today.”

“and the inclusion of meat in our diet as humans in history was probably one of the key elements that actually allowed our brains to grow and for us to develop a rich neocortex and to be the functioning humans we are today”