Brown rat (Rattus norvegicus) is the rat species common in cities all over the world. While previously European cities were inhabited by black rats (Rattus rattus), nowadays they are rare, having lost ...

This week's frigid weather has many New York City residents shivering, scurrying into cozy spots and feeling sapped. Including the rats. The United States' most populous city has been spared the Upper ...

New York rats are primarily Norway (or brown) rats. Their ancestors lived in the wild in northern China and Mongolia, were established in parts of Europe by 1500, and then followed Europeans ...

A new study led by researchers at University of Richmond has revealed that growing rat populations are the world are closely ...