The rodents, twice the size of common types, are plaguing an estate in West Yorks in the Northern U.K., often appearing in kitchens and lounges. Some fear they could be "super rats" from South America.

But the shaken man who shot it in the head -- 31-year-old Brandon Goddard -- yesterday revealed four others of the same size scuttled away to safety.

http://www.foxnews.com/scitech/2010/08/19/invasion-giant-rats/