Different populations of Homo erectus or more species?
Members of the species Homo erectus, shortly after their emergence (geologically speaking) form populations that inhabit not only the African area, but for the first time they leave Africa and inhabit the area of Europe and Asia.
Given that around more than a million years before the present, populations inhabiting all then habitable parts of the Old World existed, the interpretation of populations inhabiting different geographical areas is different.
Some experts interpret this range of variation in the fossil record of Homo erectus-like remains as evidence of the existence of different species of the genus Homo (e.g. Homo ergaster, Homo erectus and Homo heidelbergensis), Homo while others see in these same remains regional morphological specificities of different populations of Homo erectus species, which together with the characteristics that they have in common prove the flow of genes between the various populations of the then inhabited world.