Roman Period:
During the Roman period, the black rat is believed to have spread from India to the Middle East and then to Europe. This was likely due to the increase in trade and travel between these regions, as the Romans established a vast торговая империя. The rats may have been transported on ships or in caravans, and they may have found shelter in warehouses, granaries, and other human-made structures.
Medieval Period:
The black rat continued to spread throughout Europe during the Middle Ages, and it became a common pest in many towns and cities. This was likely due to the growth of urban centers and the increase in trade and travel. The rats may have found ample food and shelter in the crowded, unsanitary conditions of medieval cities, and they may have also spread through the transport of goods and people.
The black rat is believed to have played a significant role in the spread of several diseases, including the bubonic plague (Black Death), which caused the death of millions of people in Europe during the 14th century. The rats carried fleas that were infected with the plague bacterium, _Yersinia pestis_, and when the fleas bit humans, they transmitted the disease.
Conclusion:
The black rat is believed to have colonized Europe during the Roman and Medieval periods through trade and travel. The rats found suitable habitats in human-made structures, and they may have also contributed to the spread of several diseases, including the bubonic plague.
