The house rat (Rattus rattus) is a common rodent easily found in homes with long tails and clever climbing and jumping. This animal belongs to my sub-ethnic Murinae and originated in Asia. However, he then spread to Europe through trade since the beginning of the modern calendar and was actually spreading in the 6th century. Then he spread all over the world. Today's house rats tend to spread in warmer areas because in cold areas they can not compete with rats.
Unlike rivals, rodents, house rats are bad swimmers and their carcasses are often found in wells. However, he is more agile and clever climbers, even dare to "fly". The color is usually black or light brown, although now there are bred with white or loreng. The size is usually 15-20 cm with a tail ± 20 cm. These animals are nocturnal and eater all, but love the grains. Females can be childless at any time, with children 3-10 head / birth. Age reaches 2-3 years and loves living in groups