Hey, a well-fed city rat can get pretty big. One time I was walking down Canal Street in Chicago and I saw what I thought was a large, short-legged cat that was crossing the street. As I got closer it turned out to be a huge rat. It looked like something out of a Stephen King book. I think the rat's name was Cujo.
Thus far all of the rats that I found on that web site are tiny compared to Cujo.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin