NEW WotLK PET! Our friend El of El's Extreme Anglin', the best fishing fansite around, contacted us to report the first new vanity pet obtained via fishing in the expansion. Players who test their luck angling in the Underbelly of Dalaran might catch a very rare Giant Sewer Rat. This is one BIG rat! As seen in the preceding link, the Giant Sewer Rat is almost as big as El!
Check out El's full article for all the juicy tidbits about this new titanic rodent.