I think scientists are just curious as to why such a randomly mutating chemical as dna would have such similar traits in specimens around the globe. Why such distinct groups with such similarities? What makes dna tick?
We know, for instance, that butterflies from different regions which have had no recent sexual contact will develop the same patterns on their wings if set upon the same place for enough generations. So similarities are not necessarily of inheritance. But it’s interesting that both groups of butterfly would change the same way!
How imaginable is it that two seperate genealogical lines would develop near hairless arms and feet and etc. separately? Specially in very different places? But these are the kinds of good questions that make for interesting science. The questions are far more pivotal than delluded scientists think.
I think the same goes for creation myths. It is an attempt to understand similarities between people that left to their own devices might easily kill and even torture eachother. There seems to be no direct explanation as to why they are similar or should cooperate in any way.
The Africa theory presents some interesting possibilities. For instance, after maybe hundreds of thousands of years of evolution in the same place with the same evolving lines around, is it not possible that for instance the knowledge of lions or bovine is embedded in the dna? In the form maybe of reaction types that affect the imagination, say?
Also Africa theory makes an interesting case for why we walk more instinctually than run. Why roaming does our souls good. Plainsmen at heart?