The Norway rat is also referred to as the simple brown or common rat. They typically grow up to 10 inches long and have tails that are around the same length. The female is usually smaller, at approximately 9 ounces as an adult, whereas the male typically grows to around 12 ounces. Norway rats are native to Asia, but now they can be found on all continents except for Antarctica. Norway rats feed on meats, grains, nuts, fruits and roots.
Like many other rodents, Norway rats tend to live in urban areas, where humans live. Rats can carry several different pathogens that are linked to diseases such as hantavirus pulmonary syndrome, viral hemorrhagic fever, cryptosporidiosis, and more.