i once remember my uncle caught a bass that had a baby turtle in it's stomach...but this is crazy!
http://www.fieldandstream.com/blogs/bass-fishing/2009/09/cermele-catfish-eats-water-moccasin
http://www.fieldandstream.com/blogs/bass-fishing/2009/09/cermele-catfish-eats-water-moccasin