DNA samples were obtained from eight early Iberian farmers whose remains were discovered in Spain’s El Portalón cave in Atapuerca. Like populations in central and northern Europe, the Iberian farmers had traveled from the south and mixed with local hunter-gatherer groups. “The genetic variation observed in modern-day Basques is significantly closer to the newly sequenced early farmers than to older Iberian hunter-gatherer samples,” “Parts of that early farmer population probably remained relatively isolated since then (which we can still see in the distinct culture and language of Basques)