(b) Modern Human Beings

(b) Modern Human Beings If you look at this chart, you will notice that some of the earliest evidence for Homo sapiens has been found in different parts of Africa. This raises the question of the centre of human origin. Was there a single centre or were there several? The issue of the place of origin of modern humans has been much debated. Two totally divergent views have been expounded, one advocating the regional continuity model (with multiple regions of origin), the other the replacement model (with a single origin in Africa). According to the regional continuity model, the archaic Homo sapiens in different regions gradually evolved at different rates into modern humans, and hence the variation in the first appearance of modern humans in different parts of the world. The argument is based on the regional differences in the features of present-day humans. According to those who advocate this view, these dissimilarities are due to differences between the pre-existing Homo erectus and Homo heidelbergensis populations that occupied the same regions.