Misha is a large family of mammalian rodents. In the process of evolution, the body of the mouse has adapted to its direct way of life. The front legs are very well developed for digging the holes in which they live. Disproportionately large ears relative to the body give the advantage of orientation at night, this time they are the most active, as the threat from other malevolent members of the animal world is significantly reduced. Depending on the location of the mouse, they may vary in size, appearance, and survival. They are the most adaptable creatures to external factors, it makes it possible to successfully exist in almost all climatic conditions, except for the northern latitudes. The number of species is 701, the most common of which are: sand lancet, steppe mouse, white mouse, field, forest, mountainous... Predominant senses are, of course, hearing and sense of smell, and rodent representatives have very poor eyesight, mainly using their moustaches to orientate themselves in