TEZY

Decoding Human Right-Handedness

May 22, 2026 at 10:00
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✦ AI Summary
  • Two major evolutionary changes fostered right-handedness
  • Bipedalism and larger brains played crucial roles
  • Hand preference evolved into a defining human trait

A recent study reveals that humans predominantly favor their right hand due to two significant evolutionary transformations: bipedalism and brain expansion. As our ancestors evolved, their right-hand preference gradually intensified, evolving from a mere inclination to a defining characteristic of humanity.

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