Eating meat and cooking food made us human, the studies suggest, enabling the brains of our prehuman ancestors to grow dramatically over a few million years.
Although this isn’t the first such assertion from archaeologists and evolutionary biologists, the new studies demonstrate that it would have been biologically implausible for humans to evolve such a large brain on a raw, vegan diet and that meat-eating was a crucial element of human evolution at least a million years before the dawn of humankind.
via Sorry, vegans: Eating meat and cooking food is how humans got their big brains – The Washington Post.
Utopia, you are standing in it! 
Aug 02, 2015 @ 12:34:18
This idea goes back to Aiello, L. C. and Weeler, P. (1995). The Expensive-Tissue Hypothesis: The Brain and the Digestive System in Human and Primate Evolution. Current Anthropology, 33: 199-221. See http://tinyurl.com/pd8x469
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