Anonymous3 days ago
A major study published in PLOS Biology in May 2026 by Oxford and Reading researchers argues that the near-universal human preference for the right hand — an evolutionary anomaly among primates — can be explained by two uniquely human traits: walking on two legs and having exceptionally large brains. By analyzing 2,025 individuals across 41 primate species using Bayesian phylogenetic methods, the team showed that when bipedalism and brain size are accounted for, humans stop looking like outliers, and the rightward bias appears to have intensified gradually across the hominin lineage from Ardipithecus through Homo sapiens.