Depending on the patterns on their furs, we distinguish them: Dalmatian, English Irish, Essex, Berkshire, Masked, Capped, Variegated, Blaze, and Bareback. House rats can have different eye colors, and the most common are black, red, or ruby. ¹⁾

The rat that we can meet most often in the world is the common rat, whose Latin name is Rattus norvegicus. The common rat comes from South Asia. The British, who were the first to describe this species and give it its name, were convinced that it got to the British Isles on ships coming from Norway. ²⁾

Rats do not appear in the Bible. Hardly anyone has ever paid attention to this, so in many adaptations of the biblical story, we can come across references to rats. Nothing more misleading, in those days in this area of the world people, didn't yet know what these animals are because they never saw them. What is even more interesting, the inhabitants of both the Americas had their first contact with rats only around 1750 AD. ³⁾

Rats can find themselves in all conditions if only people are around. We provide the heat they need. We leave a whole lot of organic waste behind, which they can feed on. We allow them to move to more and more new places, along with our transports sent to different parts of the world. This makes Antarctica the only place where there are no rats. ⁴⁾

Rats are extremely durable creatures. They can survive regardless of the weather. Whether it is cold or hot, dry, or rainy, they are resistant to all conditions. Moreover, thanks to their small size, they can slip into a room through the smallest gap. ⁵⁾