different regions before independently taking over fresh territories as their

Different regions before independently taking over

This preview shows page 4 - 5 out of 5 pages.

different regions; before independently taking over fresh territories as their populations grew, but this was prove not possible by Andrea Manica and Bill Amos at Cambridge University. Scientists used a combination of genetics and skull measurements to show how modern humans could not have emerged in different places, but instead came from one region of southern central Africa. The researchers examined genetic diversity in 53 human populations across the world and found that the further those populations were from Africa, the less varied their genetic make-up. Dr Amos stated "It's thought that Africa's population was large but for some reason people started moving out of Africa and spreading out to colonies around the world. As they did so, their population sizes went down, and because of that, they started losing genetic variability." The fall in genetic diversity away from Africa suggests smaller groups of humans spread out from a single area. Mankind had its beginnings in Africa. Historical findings support the evidence of today’s widely accepted theory that Africa is the cradle of mankind. The human species was able to adapt to their environment and create a life that enabled them to survive. From the creation of tools that scientists discovered, the preserved fossils, carbon dating that helped to pinpoint the age of these discoveries, the insurmountable evidence shows that millions of years ago in Africa humans lived long before living anywhere else in the world.
Background image
Reference:Ehret, Christopher: The civilizations of Africa: “as history to 1800”. 2002Manners, Sarah: "Africa - The Cradle of Humankind." Africa - The Cradle of Humankind. 6 Dec.2005Dr. Leonard Jeffries: Africa: Birthplace of Humanity. Clarke, John Henrik: Africa: The Passing of the Golden Ages, May 1988Oppenheimer, Stephen: Out of Eden - The peopling of the world. 2004WIKIPEDIA – The Free Encyclopedia.
Background image

You've reached the end of your free preview.

Want to read all 5 pages?

  • Fall '07
  • Karata

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture