Asia

Yet again, why the structure?

Today I will be looking into the structure of the continent Asia.
The majority would describe some of their key features to do with the nose and the eyes. After doing some research I found a few theories that seem to make sense. Many places in Asia deal with a harsh climate, snow or desserts, of course there are places on the continent Asia that are not like this but I am speaking of a majority.

There are reasons to believe that evolution has caused the change in facial structure as snow reflects more light then your average environment, due to this the human body would have to find some way to protect itself against stronger light and this could cause a change in facial structure to the eyes. This would be the same in areas with desserts as more light is also reflected here. The temperatures should come into consideration too, when more of the eye is revealed the chance of dust or cold air etc. has of blowing into ones eye and causing damage is raised. The desserts and harsh weather conditions in some places in Asia could affect the facial structure of the eyes.

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Image from google http://bit.ly/AcXcBn
In a previous post I spoke about the facial structure on the continent of Africa. I believe that these two can be linked together. I spoke about how wider nostrils would help in an area of higher altitude to breathe in more air when there are lower levels of oxygen, many places in Asia have a high altitude for example in Tibet and a similar nose structure can be seen between the two cultures.