Oxford study links right-hand dominance to the evolution of bipedal walking

Researchers at Oxford propose that the overwhelming prevalence of right-handedness in humans traces back to the shift to walking upright. As hominins moved onto two legs, the freed-up hands took on specialized roles, and asymmetries in brain lateralization that supported balance and gait appear to have biased fine motor control toward the right side.

The finding reframes handedness as a downstream consequence of locomotor evolution rather than a quirk of cultural or genetic drift. It also offers a testable bridge between paleoanthropology and neuroscience, suggesting that other bipedal traits — pelvic structure, vestibular processing, gaze stabilization — may share the same neural substrate that nudged tool use toward one hand.