Ancient DNA reveals pervasive directional selection across West Eurasia - Ali Akbari; Annabel Perry; Alison R. Barton; Mohammadreza Kariminejad; Steven Gazal; Zheng Li; Yating Zeng; Alissa Mittnik; Nick Patterson; Matthew Mah; Xiang Zhou; Alkes L. Price; et al. (Nature, 2026)