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How Dietary Fat Made Us Human

Between the time of Homo erectus 1.8-2 million years ago and the first emerging Homo sapiens @ 200,000 years ago our evolving brains had increased by a whopping and unprecedented 75% in size and sophistication, while our closest primate cousin, the chimpanzee has a brain that hasn’t changed at all in size in close to 7 million years? Why not? For us humans, our unique preference for dietary fat from the enormous animals we hunted throughout our evolutionary development has become the single greatest impetus for our extraordinarily rapid encephalization. This has ultimately resulted in the most influential and distinguishing factor between us and all other primates and/or mammals–our unique brain– and has served–more than any other dietary inclusion, to make us human.
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