Slideshow comparing the theories for the origin of modern humans.

1. Theories of Human Dispersal. The Replacement Theory (or Mitochondrial Eve and Y chromosome Adam ) vs The Multiregional Theory.

3. Examining the evidence

7. The Replacement Theory (Out of Africa Hypothesis)

9. This section is the part that both theories have in common, but in the Multiregional Hypothesis gene flow continues, while in the Replacement Theory there is little or no gene flow.

13. African Origin European Homo erectus African Archaic EXTINCT EXTINCT Asian Modern African Modern European Modern Asian Homo erectus African Homo erectus European Archaic Asian Archaic

24. What’s on the Y Chromosome?

26. Multi – regional (Regional Continuity) Theory.

28. African Origin