Brain size linked to ecology: Scientists discover it wasn’t a complex social network that grew the prehistoric human brain; it was how far they traveled

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(Natural News) Social group size has nothing to do with the evolutionary process that increased the human brain’s size, a new study reveals. The scientific community has previously believed that the expansion of peer-to-peer and social interaction, more commonly known as the social brain hypothesis, may have contributed to the increase in brain size by enabling early humans…

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