World's oldest needle found in Siberian cave that stitches together human history

[Coyotl]

6. Yes, Out-of-Africa model is inadequate and multi-regional gene pools was scenario

with very little gene exchange for long spells. Then, post-Toba, a refugia gene pool is demographically dominant due to sheer numbers and those characteristics disperse across the whole gene pool. But we retain some genes from before fully modern characteristics dominate, indicating we have always been one species capable of reproduction across all the regional gene pools.

Just like we know there is no such thing as races, we should also be capable of surmising that the variations in the past were not distinct species or races, just locally dominant characteristics of H. sapiens (if that remains our name after taxonomic correction).