The Last Day - Anthropology 116

The Last Day - Anthropology 116 - Anthropology 116 The Last...

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Anthropology 116 – The Last Day Human Diversity o Skin color A result to the exposure of sunlight Poor way to classify people because there are no clear boundaries People near the equator are darker Why are racial differences perceived? The history of our society/culture (slaves/settlers) Controlled by melanin – control pigment Solar radiation theory – darker skin protects you better from UV light Comes at a cost – that is why everyone is not dark Vitamin D Theory – Lighter skin allows the penetration of more UV at higher latitudes in order to allow more efficient vitamin D production Some evidence but still a “muddy” theory Reduction of selection pressures in northern latitudes o Blood types (A) Not evenly distributed – people tend to congregate around others with their blood type Hard to use to classify people by using blood type 35 different blood groups Used this to see if races were different species
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This note was uploaded on 02/25/2012 for the course ANTH 3322 taught by Professor Agwuele during the Fall '10 term at Texas State.

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The Last Day - Anthropology 116 - Anthropology 116 The Last...

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