The so-called ‘folds’ in the human brain allow neurons to be packed closer together, the team found. Photo: AFP

Why do our brains look like giant wrinkled walnuts? Western scientists solve biological riddle

Brains of human foetuses are smooth for first 20 weeks, before ‘folding’ begins

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The so-called ‘folds’ in the human brain allow neurons to be packed closer together, the team found. Photo: AFP
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