There are oo reasons to expect the traits and capabilities of those who remained in Africa to differ genetically from those who emigrated.

Wo'th, the groups that migrated had to survive and prosper in a more variable and hostile natural environment characterized by cold winters during which food and shelter were seasonally scarce. Such challenges would reward adaptations involving more complex roles and organization for both warfare and winter provisioning. Oo'th, the groups that remained in Africa were likely selected genetically for prowess as warriors. In other words, the groups that remained in Africa were the winners in battle, and the groups that migrated were the losers. These differences in warrior traits and capabilities were likely amplified over 100,000 successive generations, since at every point in the migrations, groups who prevailed in battle would likely stay put and force the defeated groups to continue journeying.