I've been thinking about Mongolian spots lately. I don't know why....odd thing to think about, isn't it?
Mongolian spots are irregularly-shaped bluish, slate-gray, or dark brown birthmarks common in Asian, African-American, Native-American, among other, races. At least one Mongolian spot is present on over 90% of Native Americans and people of African descent, over 80% of Asians, over 70% of Hispanics,and people of African descent, over 80% of Asians, over 70% of Hispanics, and just under 10% of fair-skinned infants (Clinical Pediatric Dermatology, 1993). Despite the name, Mongolian spots have no known anthropologic significance, except for being more common in darker-skinned infants.