Actually, God didn’t need to “create” different species of humans. Take any group of humans, isolate them in a jungle, or an arctic environment for several thousand years, and between inbreeding and environment, they will develop some unique characteristics. Perhaps the Neanderthals, and others were merely groups of humans who developed specific characteristics, with slightly different DNA (redheads and blondes are both recessive genes in our DNA). I think all true “humans” developed, although perhaps looking differently, as a result of Adam and Eve being created. They did live a very long time, according to Genesis, and probably had an awful lot of children!! Those children spread out, and differentiated according to environment, the particular stresses made upon them by their environments: darker skin in hot countries, lighter skin in colder climates, etc… All are still human. I think the idea of “race” came about due to these changes, necessitated by environment and isolation, which caused the differences we now have. But all are still the children of Adam and Eve. As far as I know, so were the Neanderthals. Did they have souls? If they were human, descended from Adam and Eve, they must certainly have had souls, since God gave them souls.