Originally Posted by hip hop bunny hop

Well, it gets complicated because after the migration towards Europe other groups continued to migrate to the regions these people came from. Further, because of phenotype plasticity & the differing environments these people settled in some phenotypes became markedly different. Noses are pretty good example of the later; peoples who settled in dryer areas tended to get larger noses due to environmental pressure on these plastic phenotypes as a larger nose was beneficial for these people due to their current climate. Hence the stereotypical nose of Iranians.