Take the large-brained hominid bones belonging to a species called Homo heidelbergensis, which lived in Europe and Asia around 600,000 years ago. Paleoanthropologists disagreed about how they relate to other human groups, some positing they were ancestors of both modern humans and Neanderthals, others claim they were a non-ancestral species replaced by the Neanderthals in their spread across Europe." 1 2 3 Zimmer, Carl (4 July 2020). "DNA Linked to Covid-19 Was Inherited From Neanderthals, Study Finds - The stretch of six genes seems to increase the risk of severe illness from the coronavirus".