private Dorsett dropped his rifle during our most crucial charge <| sep |> Me too . If I find a multidimensional transporter , I ' ll let you know . <| sep |> Well , actually . A number of studies have focused on ascertaining the genetic impact of historical North African population movements into Iberia on the genetic composition of modern Spanish and Portuguese populations . Although initial studies pointed to the Straits of Gibraltar acting more as a genetic barrier than a bridge , more recent studies point to a higher level of recent North African admixture among Iberians than among other European populations . In terms of autosomal DNA , the most recent study regarding African admixture in Iberian populations was conducted in April 2013 by Botigu et al . using genomewide SNP data for over 2000 individuals , concluding that Spain and Portugal hold significantly higher levels of North African than the rest of the European continent . Estimates of shared ancestry averaged between 4 and 20 % whereas these did not exceed 2 % in other western or southern European populations . The highest level of North African ancestry 20 % was found in the Canary Islands while in the Iberian Peninsula it averaged 1012 %. However , contrary to past autosomal studies and to what is inferred from YChromosome and Mitochondrial Haplotype frequenciessee below , it does not detect significant levels of SubSaharan ancestry in any European population outside the Canary Islands . Indeed , a prior 2011 autosomal study by Moorjani et al . found SubSaharan ancestry throughout Europe at ranges of between 13 %, the highest proportion of African ancestry in Europe is in Iberia Portugal 3 . 20 . 3 % and Spain 2 . 40 . 3 %, consistent with inferences based on mitochondrial DNA and Y chromosomes and the observation by Auton et al . that within Europe , the Southwestern Europeans have the highest haplotypesharing with Africans . A similar 2014 study by Lazaridis et al . found an average African admixture of 14 . 8 % 12 . 6 % Mozabite and 2 . 2 % MbutiYoruba in the Spanish population , confirming that gene flow from SubSaharan and North African populations has occurred in the Spanish sample .