I'm not gonna befuddle you with "late-passes". Congrats on taking a cultural anthro class and let me suggest that you follow that up with a biological/phsyical anthropology class. You'll learn a lot more about the physical anatomy and evolution of humans. The race issue is also dealt with in that field. Considering that we share 99% of our DNA with Chimps, as homo-sapiens we are so much alike, but focus on physical differences and try to classify them into "races".