: They exhibit a lack of genetic markers from Indo-European groups and North African migrations that are common in neighboring Spanish and French populations. Summary of the Annual Report to the Basque Parliament 2024
: Genetic studies suggest Basques are descendants of Neolithic farmers who mixed with local Mesolithic hunters and remained isolated from later migrations, such as those of the Romans and Moors. basque
: The population has the highest recorded frequency of Rh-negative blood (roughly 35%) and one of the highest occurrences of Type O blood globally. : They exhibit a lack of genetic markers