It is more accurate to say that there is a SINGLE SPECIES, with regional variations in certain physical characteristics.
Genetic scientists have proven, by studying mitochondrial DNA, that ALL "races" originated in Africa. Asians, Europeans, and Native Americans are all descended from a small group of "Africans" who migrated across the Red Sea more than 100,000 years ago.
Endlessly debating "racial differences" makes my gorge rise.
Shuckins/Leggern