From Arctic sub-region border to the south of its Canadian and European-Siberian subregion. To the south of the first, covering part of Mexico and southern US states, is Sonoran subregion. A second south - Mediterranean, Central Asian and Manchurian-Chinese subregion, the geographical coordinates of which are already clear from their names. Euro-Siberian sub-area - the biggest on the occupied territory. It stretches from the Brittany peninsula in the west to Chukotka in the east of the peninsula, stretching across a huge Eurasian continent. The wolves and squirrels, hares and foxes ... and many, many other animals familiar to the Englishman, the German, Russian, Hunt, Yukagirs Chukchi. This animals typical of the same subregion. And many of these animals are found not only in Europe or Siberia, but also on other continents - North America, more precisely, in the Canadian sub-areas.