[javaistheworst]

A similar model for London, especially in the city and along the river, would be a constant - the old adage about never being more than a few feet from a rat are spot on. Bear in mind, the officially reported numbers are often a fraction of the real population. Rats are fairly intelligent creatures and are adept are remaining mostly hidden, even in the well populated areas.

A friend who makes a very decent income as a pest controller has very interesting stories to tell about the size of the rat population he encounters, the shift in their diet over the years (more fat and junk food remains), and worryingly, their increasing resistance to the wide range of controls in use today.