The Caucasus sites, the team noted, harboured two different types of “cultural materials” — that is, artefacts and tools — separated by high mountains, with so-called Micoquan” objects to the north and “Mousterian” cultural materials to the south.
These differences, they explained, could represent two distinct lines of Neanderthal migration into and out of the region.
The model identified those areas that would have experienced the least climatic fluctuations, and would therefore have provided the most stable environments for flora and fauna.
In particular, the team’s attention was focused on the Southern Caspian Sea corridor, which stood out for being relatively humid and mild, making it an ideal route along which to expand and settle.
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Article source: https://www.express.co.uk/news/science/1742286/neanderthal-migration-model-hints-hidden-archaeological-sites-iran