There’s a saying that in a big city you are never more than six feet away from a rat. It’s an urban myth but scientists are ...

and lemon pups are born white, and then develop the color whereas apricot pups are born with color. Sometimes, rat terriers have brown that isn’t clearly delineated from the other markings.

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 ...