Não người ngày một co lại trong 20.000 năm qua
Một nghiên cứu mới nhất của các nhà khoa học cho thấy, trong suốt 20.000 năm qua, đại não người liên tục nhỏ lại, thể tích não từ 1.500cm3 giảm xuống còn 1.350cm3.
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