:
'As they moved out of the continents to places where the sun was less fierce, their skin began to become paler to allow them to create vitamin D, thus giving birth to the Asians, and later the Caucasians.'
So, would that mean that technically we are more evolved than the rest?
|
No, it just means that our skin changed colour to facilitate the environment that we were living in. You see, skin colour is a balancing act - too dark and not enough UV light enters for the production of Vitamin D, too light and you get sunburn, skin cancer, etc.
In places where there is not much sun, the skin lightens to take advantage of more of the ambient UV light. In places where there are sunny summers and darker winters, the skin is conditioned to tan. Anywhere inbetween is asian and central european.
It's thought that skin changing colour could possibly occur in as short a space of time as four generations.
It's more to do with adapting to enviromental conditions than actual evolution. Like cats with long hair and short hair. If we went to Africa, it would be the Africans who would be genetically superior to us, because at that particular location on the planet they would be the most suitably adapted to the conditions.