How did human brains get so big? The answer could be in our gut

PHYSorg
Dec 3, 2024, 9:20 am114 pts
Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes allowed human ancestors to meet the very high needs for energy as they evolved larger brains has remained…

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