Food preparation and its impact on evolution

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Article reads: Experts calculated that if humans were ordinary primates living off raw food, eating would take up 48% of their day. In fact, modern humans devote just 4.7% of each day to the business of food consumption. As well as spending much less time eating than chimpanzees and other apes, humans have also evolved far smaller teeth, jaws and guts. The physical changes could not have evolved without the introduction of food processing, say the scientists.

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