Brown rats are the undisputed winners of the real rat race. New research suggests that they crawled off ships arriving in North America earlier than previously thought and out-competed rodent ...

There are old rat paths beneath the benches in at least two ferry sheds. In the spring and summer, multitudes of one species, the brown rat, live in twisting, many-chambered burrows in vacant lots ...

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Norway rats (Rattus norvegicus), like most species of rat, are very sociable and cooperate to help each other out Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

A male rat tries to mate with as many female rats as possible. Even though brown rats are also called Norway rats, the geographical name’s not accurate. They’re not from Norway. They’re from ...

On Pearl Street in Lower Manhattan, brown rats scamper between their home under a tree grille and a pile of rubbish bags full of food waste. Lighting his shot to blend with the glow of the street ...