A new study utilizes molecular genetic timelines to validate the "brain lag" hypothesis, proving that primate body growth preceded brain expansion. The analysis expands the theory by demonstrating that hominin brains eventually overshot their expected biological baseline, driven by the intense cognitive demands of forming large social groups to survive predators.
A new study utilizes molecular genetic timelines to validate the "brain lag" hypothesis, proving that primate body growth preceded brain expansion. The analysis expands the theory by demonstrating that hominin brains eventually overshot their expected biological baseline, driven by the intense cognitive demands of forming large social groups to survive predators.
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