Arabs are not a race but a Ethnic-group, the Berbers are not a race too. Anyone that claim they are is talking nonesense. Modern science, in contrast, identifies a population's common physical descent through genetic research, and analysis of the Semitic-speaking peoples suggests that they have some common ancestry. Though no significant common mitochondrial results have been yielded, Y-chromosomal links between Semitic-speaking Near-Eastern peoples like Arabs, Assyrians and Jews have proved fruitful, despite differences contributed from other groups (see Y-chromosomal Aaron). Although population genetics is still a young science, it seems to indicate that a significant proportion of these peoples' ancestry comes from a common Near Eastern population to which (despite the differences with the Biblical genealogy) the term "Semitic" has been applied. However, this correlation should rather be attributed to said common Near Eastern origin, as for example Semitic-speaking Near Easterners from the Fertile Crescent are generally more closely related to non-Semitic speaking Near Easterners, such as Iranians, Anatolians, and Caucasians, than to other Semitic-speakers, such as Gulf Arabs, Ethiopian Semites, and North African Arabs. [Wikipedia]