What is the evidence for the migration of humans out of Africa? Why is it thought that this movement of peoples took place?
What will be an ideal response?
A. The best-informed research puts Homo sapiens in Southern Africa and the Middle East by about 100,000 years ago
1) Settlement proceeded along African and Asian coasts, probably in part by Sea
2) Evidence is patchy but archaeologist measure differences in blood type, genetic make-up, and language in different parts of the world
B. Migration happened for a variety of reasons
1) We are creatures of cold and migrations coincided with the Ice Age
2) The people who traversed the ice-helmed world were conscious migrants, not just creatures whom biological and environmental imperatives impelled
3) the expansion of Homo sapiens implies an astonishing rate of population growth
4) Stresses such as food shortages or ecological disasters
5) Warfare;communities started to fight one another to control land and resources and conflicts may have made early human splinter groups migrate tosafety
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