In Eurasia in Neocene there were some species of dormice family which use food of animal origin much more often than their ancestors. These are the sable dormouse (Raptoglis zibellinus) from Three-River-Land steppes and the otter-dormouse (Glirolutra hamiota) from rivers of eastern part of Europe. One more species closely related to them lives to the south from Fourseas, in mountains of Caucasian peninsula and mountains of the Middle East – it is the mountain dormouse called also the chinchilla-dormouse for its thick warm fur. This representative of northern fauna prospers in the south exactly thanks to dwelling in cold highland climate. The mountain dormouse is the large rodent reaching weight of about 3 kilograms and the size of a small cat. Due to tail covered with long wool the animal