Things were tough for Moscovians back in the Ice Age day.
The Trans-Siberian Railroad was still about 20,000 years from construction completion. And dinner in the form of wooly mammoths had this nasty habit of migrating east, as in so far east, it landed in what would one day be the United States’ Pacific Northwest. Passage was arguably simplified via the Bering Land Bridge, which hypothetically connected the two continents.
Folklore has it that the mammoths were not alone, but were accompanied by the Gigantopithecus. In that Gigantopithecus fossils have yet to be found outside Asia, stalwart believers maintain that a small population managed to flourish in their new home.