I suggest you pick up a couple of good books on human races.
Two basic texts you can find used:
--Human Variation: Races, Types, and Ethnic Groups, by Molnar
--Human Races, by Garn
Try this website for book shopping:
BookFinder.com: New & Used Books, Rare Books, Textbooks, Out of Print
Hope this helps.
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
Belief gets in the way of learning--Robert A. Heinlein
How can I possibly put a new idea into your heads, if I do not first remove your delusions?--Robert A. Heinlein
It's not what we don't know that hurts, it's what we know that ain't so--Will Rogers
If I am entitled to something, someone else is obliged to pay--Jerry Pournelle
If a religion's teachings are true, then it should have nothing to fear from science...--dwise1
"Multiculturalism" demands that the US be tolerant of everything except its own past, culture, traditions, and identity.
™ Version 4.2
(1)