First of all, the results of this study suggest that the cultural diversifications made under the term 'learner autonomy' might not always turn out to be true for all countries.
Their view about the settlement process included a single Asian source population for all the Americans, an entry from Asia to North America through the Bering Strait, and an in situ development of the cultural and linguistic diversification observed among modern Native Americans.
Because copying error rates and local extinction rates act on cultural change and diversification in opposing ways, their effects might cancel out if they were positively correlated.
Urbanization is understood quantitatively reflecting a growing population, increased population density, territorial expansion, and production development and qualitatively indicating changes in living standards and diversification of socioeconomic cultural patterns (28).
These include land use mix, compact development, dwelling density, internal and external connectivity, open spaces, walkable neighbourhoods, access to social services, collective cohesiveness, local area governance, crime & safety, economic diversification and socio-cultural diversity.
Age estimates of the newly described haplogroups point to the existence of evolutionary windows where climatic and cultural changes gave rise to mitochondrial haplogroup diversification in Asia.
As a result, generations of arrowheads might arise as adaptations, showing the gradual refinement and diversification that is characteristic of human cultural traditions (Richerson and Boyd 2005: 115).
Whilst backed bladelet production is broadly shared across the different regions of North and East Africa, there was also a level of regional cultural diversity during this period, possibly mirroring a diversification of populations.
