Mitochondrial Eve is thought to be the woman from which common man descended on their maternal side. Every human being's mitochondrial DNA (mtDNA) is the same, as it is passed from mother to child without being broken down or bound to other genetic material. In fact, the only time that mtDNA has ever and will ever change is through mutation. Given this information, scientists can attempt to trace back to the beginning of human life. She is thought to be from somewhere in North East Africa, from which human beings began to migrate to different parts of the world.
So how do we get different kinds of people?
As thousands of years passed, quite a long time after Mitochondrial Eve, people began to evolve in response to their respective environments. For this reason, people of different origins look different from us, though we are all of the same species. This is why people of asian descent have slightly darker skin than we do, with darker hair and slanted eyes. This also goes for people of all kinds of descent, such as Ethiopian, Nigerian, German, and Hawaiian; all these groups differ from one another in appearances, based on their environments.
For more information, be sure to visit:
http://www.youtube.com/watch?v=bie96K8YujE
So how do we get different kinds of people?
As thousands of years passed, quite a long time after Mitochondrial Eve, people began to evolve in response to their respective environments. For this reason, people of different origins look different from us, though we are all of the same species. This is why people of asian descent have slightly darker skin than we do, with darker hair and slanted eyes. This also goes for people of all kinds of descent, such as Ethiopian, Nigerian, German, and Hawaiian; all these groups differ from one another in appearances, based on their environments.
For more information, be sure to visit:
http://www.youtube.com/watch?v=bie96K8YujE
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