The article “Denisovan DNA at Atapuerca” presents evidence that early modern Homo sapiens (humans) interbred with other forms of early hominids. Other genetic evidence indicates that at least some of our modern human immune system benefitted from ancestral mating with Neanderthals and Denisovans. Archaic Homo sapiens and Neanderthals certainly looked different from later modern humans, but were they completely different species compared to humans? Or, were all of the earlier forms of hominids from H. erectus to H. sapiens simply part of a very wide range of early “human” variation? Should Neanderthals and Denisovans continue to be classified as distinctly different paleo-species compared to Homo sapiens sapiens? Why or why not? There is no right or wrong answer to these questions. What do YOU think and why?
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