https://www.youtube.com/watch?v=ytktpNIN3OM

Turns out there were 3 distinct lineages (sub-species) of Denisovans.
One in Siberia/Mongolia, one in Tibetan Highlands and a different one in Melanesia.
High Denisovan DNA content makes Tibetan Sherpas more well adapted to higher altitudes than the rest of us.
We interbred with all of them.
And before that, Neanderthals.
So if there are different 'lineages' of humans, that can be genetically tested, why is it scientists say that the concept of 'race' is meaningless?
It seems like 'race' is just another word for 'lineage' and there are definitely a lot more different 'lineages' than the 5 listed on the US Census form.
There were 16 different 'sub-species' of humans (hominids-anything more closely related to us than a chimpanzee or a Bonobo) we co-existed with before we left Africa. And there were already a bunch of different 'sub-species' of humans that left Africa long before our species, at least 7 that we know of. (Neanderthal, three different sub-species of Denisovan, Erectus, Cro-Magon, Heidelbergensis and Homo floresiensis.)

Ya just gotta have faith!! Oh, yeah, and maybe some works,,,

But all works and no faith makes Jack a dull hominid.