"They studied me for  years, but no one ever managed to figure out what I am.  I got poked and prodded on a daily basis.  All they ever managed to figure out is that I'm an amphibian of some sort, but I'm nothing like any known species.  But they fed me, and I grew from less than an inch long to the size I am now.  One day last year I escaped, eating one of the crueler scientists and a couple of guards en route.  And that's how my binge problem started." She finished.