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 ...

Jason Munshi-South, a Drexel University ecology professor who has researched New York City’s rats, said those that are already holed up in subway tunnels, sewers, crawlspaces or other nooks can ...

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 ...