[Candor7]

I for one do not subscribe to the out of Africa theory. There are just too many hominid skeletons found throughout the world for there to be only a single seat for the evolution of homo sapiens.

Likelihood is that the major races each started in their own native location on the globe, and the palaeontologists have not got the complete picture yet.

[muawiyah]

The easy solution to the conundrum is that a human population would move North during interglacials or maybe even interstadials, and then move South back to East Africa during the glacial peaks.

Over the last 2.5 million years there are 21 times that could have happened (at a minimum), and maybe as many as 100 times all things considered.

Most of the record of human development to handle colder and higher latitudes would have been destroyed in this process, or in the comings and goings of the Sahara desert.

It's noteworthy that sometimes the Middle Eastern arid zone is FAR LARGER and constitutes as big a desert as the Sahara ~ it has not always been the case that people could travel South from Central Asia back to Africa or to Sundaland.

The other day in reading about how fast the ability to confer lifelong lactase production can be passed into a population (they have a living example of a Sa'ami group that picked it up in about 5 generations), I realized that all but about 25% of Subsaharan Africans have that ability ~ which is traceable TO Northern and Western Europeans.

Those genes flowed South to Africa, not North to Europe. All the other genes could have done so as well.

There's little reason to imagine that "modern" development even occurred in Africa.