In the middle of Upper Paleolithic, there is migration groups of Eastern European Paleolithic in Siberia. There was found a clear "cultural-genetic" relationship between Gagarino, Avdeevo, Kostenki13, Zaraysk sites and Mal'ta-Buret'. (Okladnikov Anikovich, Lisitsyn). Later were found European-style sites in Urals. Unique European Paleolithic Siberia developed in parallel with the local forms of the Siberian Paleolithic. But about 17 000 years ago it has been completely replaced Asian Paleolithic, with typical Asian tools and instruments. (Lisitsyn)
At the end of the Upper Paleolithic began warming and change of natural zones. Many cold-loving animals are moved to the north, such as deer,polar fox, endangered mammoth and so on. After them came and people. Survived populations final Palaeolithic of Eastern Europe began the familiarization coast of Ancylus Lake (now the Baltic Sea), the upper reaches of the Volga, and other previously inaccessible areas. There they met with the populations of Western European Paleolithic.
With the disappearance of large herd animals and open landscape loses its meaning driving hunt. Smaller and mobile species that live in the forest zone, forcing a person to change the traditional way of hunting for the Paleolithic. There were small groups of hunters armed with bows and arrows, which appeared at the end of the Paleolithic era, probably in swiderian WHG culture. The oldest bow found in Denmark. This made it possible to hunt both the large and smaller single animals and birds.
Water spaces has become very much, and a herd of hoofed animals is much less. The role of fishing was rising. This is confirmed by the findings of numerous instruments for fishing: hooks, harpoons, spears. At this time, there was invented a curved fishhook (direct existed in the Paleolithic). The most important achievement in the use of fishing nets were. But neither spear or rod could not provide a sufficient number of production. In the Baltic Mesolithic sites were finds the remnants of fishing nets. The peat bogs of Scandinavia known finds of fragments of fishing nets over 25m.