"...Just as the cultures of the steppes have various historical origins and not solely Pontic, similarly, the BMAC has predecessors which are archaeologically visible in the material culture, both within its home area and further west, when the Neolithic way of life was being established. It is therefore very difficult to assign it a steppic origin. Incidentally, this is confirmed by biological anthropology, with all its limitations, which shows the permanency of physical characteristics within the BMAC and the very limited extent of mixing with steppic populations.57"