EPISODE · Jul 23, 2026 · 7 MIN
20260723 人类为何大多是右撇子
from 古哥古点（全集）
为什么人类会有高达九成的群体右倾偏好，而其他灵长类动物却没有？最新的发育生物学研究发现，惯用手的根源甚至早于大脑发育，而是由胚胎期脊髓基因表达的差异决定的。从工具制造、语言演化到心脏位置带来的格斗博弈，用手习惯已深深交织在人类演化的底层机制中。
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20260723 人类为何大多是右撇子
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