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When Fire Met Food, the Brains of Early Humans Grew Bigger

  • November 10, 2012
    106919

Cooked Food

Story at-a-glance

  • Ancient humans had to graze constantly to find enough calories to live on, but as there are only so many hours in a day, and raw, mostly vegetable, foods do not contain many calories, this put a metabolic limitation on how big the brain could grow.

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